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Username Post: Spindle Questions        (Topic#359535)
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-21-20 02:33 AM - Post#2784785    

Hello all,

I'm doing some research about spindles and just want some answers if any one can help.

1) 1967 drum and disc brake are different, yes/no
2) 1968 are they the same as 1967 drum and disc? yes/no
3) I've read somewhere 1969/70 fit a 1967 but have bigger bearings? yes/no

If you used 1969/70 spindles on a 1967 do you have to change anything else? Steering arms etc

4) Which years are easier to get a hold of second hand? 1967, 1968, 1969, 1970

Any help would be greatly appreciated,
Thanks.




1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 


jktucker92 
Silver Supporting Member
Posts: 346
jktucker92
Loc: West Richland, WA
Reg: 02-05-17
01-21-20 01:17 PM - Post#2784825    
    In response to N_V_US_67

I can answer some of your questions. The 67-68 cars used the same setup, and the 69-70 cars used the same setup. Drum spindles are different than disc for any year. I had originally purchased a 67-68 kit to install on my '66 Impala, then traded that set on a '69-70 set with a local wrecking yard because I was concerned about the calipers. I don't think either one is going to be easier to find than the other. There are instructions on what you need to install C3 corvette brakes on our cars, which is typically easier to find.

67-68 (they're the same):
Use dual piston calipers
Hard to find replacement calipers, kits

69-70 (they're the same):
Use single piston calipers
Calipers are easy to get / rebuild
See sticky on rotors for 69-70 for details.




 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-22-20 05:15 PM - Post#2784913    
    In response to jktucker92

  • jktucker92 Said:
I can answer some of your questions. The 67-68 cars used the same setup, and the 69-70 cars used the same setup. Drum spindles are different than disc for any year. I had originally purchased a 67-68 kit to install on my '66 Impala, then traded that set on a '69-70 set with a local wrecking yard because I was concerned about the calipers. I don't think either one is going to be easier to find than the other. There are instructions on what you need to install C3 corvette brakes on our cars, which is typically easier to find.

67-68 (they're the same):
Use dual piston calipers
Hard to find replacement calipers, kits

69-70 (they're the same):
Use single piston calipers
Calipers are easy to get / rebuild
See sticky on rotors for 69-70 for details.




Thanks jktucker92 for your help,
I'm trying to get a better understanding of what can go with what and what can't and you have answered some of those questions I have.

Yes, those 4 piston 67 calipers were a great option way back in 67 but are certainly a problem now getting rebuilt and getting new parts.
I have 5 of them and none of them have been stainless sleeved, I don't think I can get 8 good pistons among them (mostly pitted badly) not sure what to do with them.

Every one seems to favour the single piston 69-70 model, more readily available new and rebuilt.

The C3 option is a good one but no so readily available here in Australia.

If only we had a place like All American Classic's in Vancouver WA to call on for early stuff.

Another question has come to mind since I wrote the first topic is:

Would you need to use drum brake steering arms with the drum brake spindles?

Thanks.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
jduffett 
Newbie
Posts: 30

Loc: Hamilton Ontario
Reg: 05-21-17
01-22-20 09:35 PM - Post#2784939    
    In response to N_V_US_67

If you search the 65-66 forum you'll likely find more details as well, since upgrading to the later disc brakes is fairly popular on those cars. I ended up with a Wilwood kit and C3 spindles, but I did do a bunch of research on what parts interchanged before I decided to go that way. Here's a link to a spreadsheet I was using to track it: Link
That's incomplete, and I can't guarantee the accuracy! If nothing else, it should give you some part numbers to search. If anyone wants editing permission let me know.
If I recall correctly, in general terms the spindles have pretty good interchangeability - you can mount whatever steering arm you want, and the differences will be in the bearing size and depth of the mounting boss on the front side above the spindle (different between disc and drum).

John
66 Impala SS


Edited by jduffett on 01-22-20 09:37 PM. Reason for edit: No reason given.

 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-23-20 10:40 AM - Post#2784982    
    In response to jktucker92

Good input from the previous posters,

1) 1967 drum and disc brake are different, yes/no
Drum and disc spindles are different 67-70. Disc spindles (beyond the different bearing sizes 65-68/69-70) have a shorter caliper bracket boss.I'm convinced a handy person could actually cut down and tap that tall drum boss to convert it to take the either the single or 4 piston disc caliper bracket.

2) 1968 are they the same as 1967 drum and disc? yes/no
Yes. It is possible some late 68 cars were delivered with the new single piston setup.

3) I've read somewhere 1969/70 fit a 1967 but have bigger bearings? yes/no
Yes and Yes. And you always want the big bearing on a conversion.

If you used 1969/70 spindles on a 1967 do you have to change anything else? Steering arms etc
To be sure of compatibility, just unbolt your original drum steering arms from the backing plate, and bolt them into your chosen GM disc conversion.

4) Which years are easier to get a hold of second hand? 1967, 1968, 1969, 1970
67-70 in any caliper configuration can be difficult to find.
All you list are not plentiful by any means. You have to keep a keen eye out for them, as they get snapped up really quick when they come up. The hardest part to find for the 69-70 Single piston is the caliper brackets. They are really hard to find on their own and rarely come up.
Seeing where you are located, I'd recommend going the C3 route, as all the parts except the spindle and hub can be bought new from any Corvette house.The spindles and hubs on their own are actually quite plentiful. If unable to find a complete 69/70 single piston setup, just start your journey with some 68-82 C3 spindles and build up from there. Fyi, the 68-82 Vette spindles are identical to the 69-70 Impala spindle.
Cheers.

1967 Grande Parisienne 4DR HT
My Flickr page



 
59fins 
Member #212 "19th Year" Gold Supporting Member
Posts: 2273
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
01-23-20 06:02 PM - Post#2785010    
    In response to mjc1

"Fyi, the 68-82 Vette spindles are identical to the 69-70 Impala spindle."

This subject has changed in so many ways because of the lack of replacement rotors, back in 08 so I put 69 disk setup on my 67.
Since then it (the sticky) has changed many times, I honestly cannot remember which route I went, but new bearings for a 69 B Body, but had a hard time lining up the "replacement rotor" that was suggested in the sticky of the time, and had to use 2 washers to shim the caliper / spindle, so the brake pads would fit, got a bit of grief here from the photos I had posted, but at the time I followed the sticky and it didn't work quite right

But it did work in spite of the grief I got, and still works to this day.
Now 69-70 rotors are available, I have bought them, but have not put them on yet, I was told that the c3 corvette conversion has smaller rotors / calipers not designed for our big cars, so to get the brakes designed for our BIG cars, not to go that way, The 4 piston route are smaller bore?

I guess if you could find the parts individually could be difficult and time consuming? I don't know how hard it is to get caliper brackets for a 69-70 B body to put on a c3 for a B Body, then master cylinder of your liking , but one would think they would pay up for the parts made for the BIG car, shipping alone for individual parts would eat up what one would think they were saving.
I have been trying to find the right side splash shield for a while because mine has some corrosion, the part number shows it to be the corvette # but they look completely different, so it's a crap shoot.

I recently went to DVAP in Phoenix and found a 70 with the complete front disk brake setup, that looks like recently had pads put on it, only problem is the shield's are bent up, some time to straighten them are needed but worth it to me as a backup.
I bought the brake booster down, the rotors look good, but until measured …. so they are out there.
I'm about to switch to a Big Block, and I'm pulling everything off the front, and doing some well past due and needed detail work under the hood / suspension, as far as cleanup and painting, powder coating and zinc coating, new brake and fuel lines and will see first if the rotors I bought will fit my existing 69 spindle setup without the washer shims.

Sorry about the book, this topic has always been sketchy, are big cars are not sports cars, and there are allot of aftermarket gambles out there, or very expensive ones...

Attachment: DSC05174.JPG (746.62 KB) 3 View(s)


I believe this was the photo I got grief on


Attachment: DSC04423.JPG (907.73 KB) 1 View(s)


This is what I started with


Attachment: DSC04424.JPG (901.13 KB) 1 View(s)


And this


Attachment: DSC05171.JPG (848.85 KB) 1 View(s)


It was a PITA, but it worked


Attachment: DSC05333.JPG (871.77 KB) 2 View(s)




Bill H.
67 Impala SS




 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-23-20 07:38 PM - Post#2785020    
    In response to mjc1

You are right Bill, this conversion topic has taken a long and winding road over the years, sometimes moving backwards and changing as it moved along. Guys have always been able to find a way to make it work with their own signature on the job, but it can be confounding sorting through everything to be sure.
But like yourself, I can also talk from experience. My C3 conversion on my 67 has worked flawlessly. The 4 piston caliper actually has it's clamping force over a larger surface area, and is more than up to the task of stopping our large cars. The C3 Vette was far from a lightweight. The C3 rotor is identical in diameter to the passenger car rotor.
I should clarify at this point that a drum brake steering arm can only be used on a C3 conversion, not single piston as that setup has a unique arm that has an extra caliper bracket mounting boss. Another plus for the C3 if piecing it together. One more thought, with a C3 conversion, spend the money and buy Wilwood D8-4's, you'll not regret it. Cheers.

1967 Grande Parisienne 4DR HT
My Flickr page



 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-24-20 03:21 AM - Post#2785036    
    In response to jduffett

  • jduffett Said:
If you search the 65-66 forum you'll likely find more details as well, since upgrading to the later disc brakes is fairly popular on those cars. I ended up with a Wilwood kit and C3 spindles, but I did do a bunch of research on what parts interchanged before I decided to go that way. Here's a link to a spreadsheet I was using to track it: Link
That's incomplete, and I can't guarantee the accuracy! If nothing else, it should give you some part numbers to search. If anyone wants editing permission let me know.
If I recall correctly, in general terms the spindles have pretty good interchangeability - you can mount whatever steering arm you want, and the differences will be in the bearing size and depth of the mounting boss on the front side above the spindle (different between disc and drum).



Thanks John,

I like the spread sheet, they come in handy when you can't put your hands on a parts manual.

I went and had a look and found this thread on the 65-66 forum,
https://www.chevytalk.org/fusionbb/showtopic.php?t...

Doing the exact same thing as I'm researching now.
I do like the Wilwood set up, just buying a whole kit and not having to spend a lot of time searching eBay, but it just depends on what spindle I have at the time (67-68, 69-79 or C3)

Thanks.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-24-20 03:36 AM - Post#2785037    
    In response to mjc1

  • mjc1 Said:
Good input from the previous posters,

1) 1967 drum and disc brake are different, yes/no
Drum and disc spindles are different 67-70. Disc spindles (beyond the different bearing sizes 65-68/69-70) have a shorter caliper bracket boss.I'm convinced a handy person could actually cut down and tap that tall drum boss to convert it to take the either the single or 4 piston disc caliper bracket.

2) 1968 are they the same as 1967 drum and disc? yes/no
Yes. It is possible some late 68 cars were delivered with the new single piston setup.

3) I've read somewhere 1969/70 fit a 1967 but have bigger bearings? yes/no
Yes and Yes. And you always want the big bearing on a conversion.

If you used 1969/70 spindles on a 1967 do you have to change anything else? Steering arms etc
To be sure of compatibility, just unbolt your original drum steering arms from the backing plate, and bolt them into your chosen GM disc conversion.

4) Which years are easier to get a hold of second hand? 1967, 1968, 1969, 1970
67-70 in any caliper configuration can be difficult to find.
All you list are not plentiful by any means. You have to keep a keen eye out for them, as they get snapped up really quick when they come up. The hardest part to find for the 69-70 Single piston is the caliper brackets. They are really hard to find on their own and rarely come up.
Seeing where you are located, I'd recommend going the C3 route, as all the parts except the spindle and hub can be bought new from any Corvette house.The spindles and hubs on their own are actually quite plentiful. If unable to find a complete 69/70 single piston setup, just start your journey with some 68-82 C3 spindles and build up from there. Fyi, the 68-82 Vette spindles are identical to the 69-70 Impala spindle.
Cheers.



Thanks, you've put answers to a lot of puzzling questions I've had for a number of years now.
I've always wanted to keep the 67 as close to original as possible but that is becoming harder and harder to do.
So I'm now looking at each change I make to the car reversible and keep the parts I take off so they can be refurbished and reinstalled should I need/want to.
The 69/70 route doesn't seem as appealing as the C3 route, reason being the availability of replacement parts of the shelf (new or second hand) for the C3.
It will be an expensive process either way I go but it will be only a oncer for a long time I hope.

Thanks.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-24-20 03:49 AM - Post#2785038    
    In response to 59fins

  • 59fins Said:
"Fyi, the 68-82 Vette spindles are identical to the 69-70 Impala spindle."

This subject has changed in so many ways because of the lack of replacement rotors, back in 08 so I put 69 disk setup on my 67.
Since then it (the sticky) has changed many times, I honestly cannot remember which route I went, but new bearings for a 69 B Body, but had a hard time lining up the "replacement rotor" that was suggested in the sticky of the time, and had to use 2 washers to shim the caliper / spindle, so the brake pads would fit, got a bit of grief here from the photos I had posted, but at the time I followed the sticky and it didn't work quite right

But it did work in spite of the grief I got, and still works to this day.
Now 69-70 rotors are available, I have bought them, but have not put them on yet, I was told that the c3 corvette conversion has smaller rotors / calipers not designed for our big cars, so to get the brakes designed for our BIG cars, not to go that way, The 4 piston route are smaller bore?

I guess if you could find the parts individually could be difficult and time consuming? I don't know how hard it is to get caliper brackets for a 69-70 B body to put on a c3 for a B Body, then master cylinder of your liking , but one would think they would pay up for the parts made for the BIG car, shipping alone for individual parts would eat up what one would think they were saving.
I have been trying to find the right side splash shield for a while because mine has some corrosion, the part number shows it to be the corvette # but they look completely different, so it's a crap shoot.

I recently went to DVAP in Phoenix and found a 70 with the complete front disk brake setup, that looks like recently had pads put on it, only problem is the shield's are bent up, some time to straighten them are needed but worth it to me as a backup.
I bought the brake booster down, the rotors look good, but until measured …. so they are out there.
I'm about to switch to a Big Block, and I'm pulling everything off the front, and doing some well past due and needed detail work under the hood / suspension, as far as cleanup and painting, powder coating and zinc coating, new brake and fuel lines and will see first if the rotors I bought will fit my existing 69 spindle setup without the washer shims.

Sorry about the book, this topic has always been sketchy, are big cars are not sports cars, and there are allot of aftermarket gambles out there, or very expensive ones...




Hello Bill,

You know I never even gave brakes a thought when I was wondering around Dessert Valley last year, to busy looking for other stuff, I probably even walked past the 70 you picked from, had my nose in the row of 67's he had their but most of it was to far gone for my liking.

I see from your top photo the 69/70 steering arms have the extra bolt hole at the end attached to the calliper bracket.
So if I was to use a 69/70 spindle, I could not use my disc brake steering arms as they don't have that extra hole?
If I was to get some I'd have to get spindles and steering arms to mount the single piston calliper?
Where as If I went with the C3 spindles with four piston callipers I could use my steering arms of the 67 as I would use the C3 calliper mounting brackets, right?

As far as the rest of the setup goes I've got a power booster and prop valve already in place so its just the front setup I need.

Thanks.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




Edited by N_V_US_67 on 01-24-20 03:58 AM. Reason for edit: No reason given.

 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-24-20 04:12 AM - Post#2785039    
    In response to mjc1

  • mjc1 Said:
You are right Bill, this conversion topic has taken a long and winding road over the years, sometimes moving backwards and changing as it moved along. Guys have always been able to find a way to make it work with their own signature on the job, but it can be confounding sorting through everything to be sure.
But like yourself, I can also talk from experience. My C3 conversion on my 67 has worked flawlessly. The 4 piston caliper actually has it's clamping force over a larger surface area, and is more than up to the task of stopping our large cars. The C3 Vette was far from a lightweight. The C3 rotor is identical in diameter to the passenger car rotor.
I should clarify at this point that a drum brake steering arm can only be used on a C3 conversion, not single piston as that setup has a unique arm that has an extra caliper bracket mounting boss. Another plus for the C3 if piecing it together. One more thought, with a C3 conversion, spend the money and buy Wilwood D8-4's, you'll not regret it. Cheers.




Hello Mark,

I've just posted to Bill and then read your post and saw the clarification about the steering arm, is that both the drum and disc arms from a 67 will only fit the C3? (According to jduffet's spread sheet the arms are the same)
Bills comment on the C3 rotors being smaller is right (piston size) as I found that out when I took some of mine apart and measured them and found 67 pistons to be slightly bigger in diameter than the C3 ones.
Agree with you whole heartedly about the Wilwood callipers, but if I was to do that I would probably go for the whole kit, I still have to find spindles either way though...……

Thanks.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
59fins 
Member #212 "19th Year" Gold Supporting Member
Posts: 2273
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
01-24-20 05:03 AM - Post#2785042    
    In response to N_V_US_67

Boy I’m glad Mark clarified the steering arm, that’s above my pay grade, I texted a friend about getting 67 calipers for the 67 redone, he said he had his done at

http://www.lonestarcaliper.com/c-69-core-charges.a...

Could call them and see what they have to offer, my friend said the bore is smaller on the corvette, but this company was able to his set with SS sleeves.

He has a trailer queen 67 SS427, so it does not get put to use very often he said to “ask if they were still good using DOT 5 brake fluid as long as it’s made by a company called Cartel” He has several sets of these, but did put the 69-70 setup on his 67 Belair wagon just for ease of parts if he were to be on the road.

On my car, I have since rebuilt all the other components and found 2 F-40/41 front sway bars at DVAP as well, the 15/16” F-40 F41 is the front sway large bar, they use the same bracket, but a different bushing which used to hard to get! I bought a set on eBay for an F-41 67 corvette it has a 15/16” bar as well, perfect fit, and has the rib that past aftermarket bushings did not, that rib stops the bushing from sliding, I have a 1 inch aftermarket bar I will be getting rid of on car now, because I could not locate the bigger bar, same trip to DVAP, one from a 67 wagon, and one from a 68 Impala! I found a NOS rear sway bar several years back, installed it a few month’s ago, had bought a hardware kit years before that.
It has always been a work in motion, it (Was) a “somewhat original car” , born w/ a 283 pg that someone stuck a t-400 in, so this will be my third engine, my first BB, dinoed at 474 hp at 5100 rpm’s on pump gas, I had changed to a 4 speed from a 65 in 2010 ish, so now just got a 010 gear box rebuilt, the 65 box was a rebuilt box, but wanted a 67 box, I have removed the 10 bolt when I put the 12 bolt / sway bar in. The car had ps, p drum brakes, a/c and was an SS, I like cars period correct, I felt the 69-70 brakes were going to have to be close enough for 67-68’ are hard to come up with for parts, I was looking through the parts book rebuilding my steering gear, and looked up the master cylinder, they are a different part # disk to drum in 67, the master cylinder in the photo is what came with the 69 set up if I remember?
But changed to a 67 look alike from cardone later for esthetics, I’m sure Wildwood would be nice, but just does not look right to this old guy, most B Body guys notice the 69 brakes and seem to be ok with it, cause front disks are a must no matter how you go. Good luck with the project, if your car is all original, and came with disk brakes, I’d look into the link above, a phone call may solve some issues, find out if they can rebuild your original calipers.

Bill H.
67 Impala SS




 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-24-20 08:30 AM - Post#2785060    
    In response to 59fins

Good topic guys.

Another thing of note: If you do any 4 piston setup, 67/68 Impala or C3 I believe you will not be able to use any 15" stock standard steel wheel, regardless of the diameter or width. The 4 piston caliper protrudes beyond the face of the hub. A GM 15" rally will work as it has the concave center to the outside of the hub, which allows for caliper clearance, the standard wheel has a flatter face. The Single piston caliper will sit inside of the hub face and the standard 15" wheel should fit.

One more thing, all 65-69 Drum spindles are physically the same, the only difference is the bearing sizes between 65/68 - 69/70.
The Same applies to all disc spindles but for the bearing upsize change for 69.
69/70 Single piston Impala spindles are actually the same part number as 68-82 C3 Corvette spindles.

Again, If unable to find a suitable spindle, I'd try to modify some larger bearing drum spindles to take the C3 caliper bracket.

Here is a collection of brake images that might provide some insight, have a look,
https://www.flickr.com/photos/7822276@N03/al bums/7...

1967 Grande Parisienne 4DR HT
My Flickr page



 
59fins 
Member #212 "19th Year" Gold Supporting Member
Posts: 2273
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
01-24-20 01:19 PM - Post#2785083    
    In response to mjc1

It is a good topic Mark,
Now that is allot of pics of brake setups!
I recognize many of them and have them saved on my computer .
Interesting fact on 4 piston brakes and 15 inch wheels, good to know.

One problem I have had with my car as well, is the brake light will flicker at times, I have replaced virtually everything at one point or another except the rotors and the calipers, and the metal brake line to rear. The cutaway of that valve is interesting as well, figured it was the culprit, but after a complete AAW harness replacement it has never stopped?
Sometimes I don’t see it for month’s, sometimes it comes on slightly, never full on except when parking brake is on, hoping new rotors may be will fix the issue?
Nobody can seem to figure it out, car stops great, never low on fluid....

Bill H.
67 Impala SS




 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-25-20 04:49 PM - Post#2785165    
    In response to 59fins

  • 59fins Said:
Boy I’m glad Mark clarified the steering arm, that’s above my pay grade, I texted a friend about getting 67 calipers for the 67 redone, he said he had his done at

http://www.lonestarcaliper.com/c-69-core-charges.a...

Could call them and see what they have to offer, my friend said the bore is smaller on the corvette, but this company was able to his set with SS sleeves.

Thanks for the offer Bill, but I have already been in touch with them via email and had a long discussion about rebuilding my calipers. They are familiar with the 67 being different to the Corvette units.
My only down side to doing the rebuild through them is the cost of freight both ways from here in Australia. I did however find a place close to me here in Australia who can stainless sleeve them for me but they don't do a lot the size of the 67 caliper so I'm a little apprehensive about using them to do the job.



1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
01-25-20 05:01 PM - Post#2785166    
    In response to mjc1

  • mjc1 Said:
Good topic guys.

Another thing of note: If you do any 4 piston setup, 67/68 Impala or C3 I believe you will not be able to use any 15" stock standard steel wheel, regardless of the diameter or width. The 4 piston caliper protrudes beyond the face of the hub. A GM 15" rally will work as it has the concave center to the outside of the hub, which allows for caliper clearance, the standard wheel has a flatter face. The Single piston caliper will sit inside of the hub face and the standard 15" wheel should fit.

One more thing, all 65-69 Drum spindles are physically the same, the only difference is the bearing sizes between 65/68 - 69/70.
The Same applies to all disc spindles but for the bearing up size change for 69.
69/70 Single piston Impala spindles are actually the same part number as 68-82 C3 Corvette spindles.

Again, If unable to find a suitable spindle, I'd try to modify some larger bearing drum spindles to take the C3 caliper bracket.

Here is a collection of brake images that might provide some insight, have a look,
https://www.flickr.com/photos/7822276@N03/al bums/7...




Mark, Having the factory disc brakes on the 67 it has 15" Rallye wheels and there is plenty of room between the caliper and rim to play with as far as variation goes setup wise.

I've had a couple of looks at that vast collection of photos and I'll probably have a couple more, is that your setup with the dimpled rotors and Wilwood calipers? Man there is a lot of food for thought there.

There is a Corvette import place just north of Brisbane I will give them a ring and see if they can help me in some way spindle wise next week, will keep you posted.

1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-26-20 08:44 AM - Post#2785205    
    In response to N_V_US_67

Any pictures you see of the brakes mocked up on the wooden stands are mine Chris. Making up some stands for your setup is the best way to mock up I've found. I'm currently putting together a 1970 single piston setup for my 65 that I scored complete for $200, and will be using 69 big bearing drum hubs with C3 rotors. Had the calipers locally rebuilt for $150. Even with a complete setup, the costs can add up.
If interested, I have a pair of C3 brackets for $50 cdn I could ship to you for costs. , for fun give me your actual postal code in a PM and I'll give you an estimate. I did an estimate for 12x11x3 at 4 lbs to Aus 55000 and it comes out at $33.43 cdn.
One repop, one factory GM,



1967 Grande Parisienne 4DR HT
My Flickr page



 
59fins 
Member #212 "19th Year" Gold Supporting Member
Posts: 2273
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
01-26-20 09:31 AM - Post#2785209    
    In response to mjc1

  • mjc1 Said:
Any pictures you see of the brakes mocked up on the wooden stands are mine Chris. Making up some stands for your setup is the best way to mock up I've found. I'm currently putting together a 1970 single piston setup for my 65 that I scored complete for $200, and will be using 69 big bearing drum hubs with C3 rotors. Had the calipers locally rebuilt for $150. Even with a complete setup, the costs can add up.
If interested, I have a pair of C3 brackets for $50 cdn I could ship to you for costs. , for fun give me your actual postal code in a PM and I'll give you an estimate. I did an estimate for 12x11x3 at 4 lbs to Aus 55000 and it comes out at $33.43 cdn.
One repop, one factory GM,





Mark,
Clearly you take your brakes serious!
Confused on first the hubs, are 69/70 drum bearings different to use than 69/70 disk hub bearings ? is there a difference? That could be why I had to shim mine back in 08?
So the drum hubs even larger than the disk ones? Hence reason for C3 Rotor, when 69/70 rotors are now available?
And what do you use for a dust shield?
I am going to be going through all of this again real soon but want to keep it simple.
So what I see is 69 /(assume 70?) drum hub has larger bearings so the thinner C3 rotor will fit? Or is it the C3 rotor is larger than the b body disk rotors ?
And if you use the C3 rotor, which caliper brackets are you using?

Sometimes it takes talking it out to understand

Not at all questioning, just want to know, I noticed in the pics there was a thickness difference in rotors I assume where this came from? And never put it together....


Bill H.
67 Impala SS




 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
01-26-20 10:10 AM - Post#2785212    
    In response to 59fins

Simply stated, if you want to use C3 Rotors on a 69/70 Single piston setup (for lower rotor cost and better availability), use a 69-70 big bearing drum hub. Place the rotor over the hub with Vette studs through the hub from the back.
I've done this in the past simply as there was no stock Impala rotor available at the time. and I'm doing it even today because I have some C3 rotors hanging around.
You cannot place a C3 rotor on the Impala 69/70 Disc hub with a Single piston caliper, it will not center well in the caliper. Doing so will force you to clearance grind off some of the bolt bosses on the inboard side of the caliper. And You'll have to grind down the inboard pad as well.
Caliper brackets don't change.
There is no new splash shield currently offered for the single piston setup, at least I've not seen it yet.
Bearings and seals are the same disc/drum, 65-68, 69-70.
All said, today you are probably just better off buying the correct 69/70 rotor.

You can see the difference in height between the 69/70 disc hub (left) and the Drum hub. It's the fact that trying to mount a C3 rotor over that disc hub that makes the difference, and hence the clearance issue. It simply matches and centers better with the drum hub on the right. Cheers.






1967 Grande Parisienne 4DR HT
My Flickr page



 
59fins 
Member #212 "19th Year" Gold Supporting Member
Posts: 2273
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
01-27-20 01:43 PM - Post#2785293    
    In response to mjc1

  • mjc1 Said:
Simply stated, if you want to use C3 Rotors on a 69/70 Single piston setup (for lower rotor cost and better availability), use a 69-70 big bearing drum hub. Place the rotor over the hub with Vette studs through the hub from the back.
I've done this in the past simply as there was no stock Impala rotor available at the time. and I'm doing it even today because I have some C3 rotors hanging around.
You cannot place a C3 rotor on the Impala 69/70 Disc hub with a Single piston caliper, it will not center well in the caliper. Doing so will force you to clearance grind off some of the bolt bosses on the inboard side of the caliper. And You'll have to grind down the inboard pad as well.
Caliper brackets don't change.
There is no new splash shield currently offered for the single piston setup, at least I've not seen it yet.
Bearings and seals are the same disc/drum, 65-68, 69-70.
All said, today you are probably just better off buying the correct 69/70 rotor.

You can see the difference in height between the 69/70 disc hub (left) and the Drum hub. It's the fact that trying to mount a C3 rotor over that disc hub that makes the difference, and hence the clearance issue. It simply matches and centers better with the drum hub on the right. Cheers.








That's it!

"You cannot place a C3 rotor on the Impala 69/70 Disc hub with a Single piston caliper, it will not center well in the caliper."



Mark,
When going through all your pics the other day and seen this one, (which I have seen before) it kind of rang a bell, because B Body rotors were not available at that time (2008), and I do remember getting bearings for the 69 "B Body" hub, got the C3 rotor, hence the photo from above with shims / washers , the sticky kept changing, I was asking questions, and once I got it to work I let it go I guess, knowing something was not quite right, but it worked.

I love this site! Always learn something!

Thanks Mark for your input!(and sticking to my questions) makes perfect sense now....

I do miss my mind the most.

Bill H.
67 Impala SS




 
brickwhite 
Poster
Posts: 71
brickwhite
Loc: Missouri
Reg: 09-05-19
02-04-20 09:01 AM - Post#2785867    
    In response to 59fins

My C3 setup on my 66 impala.

how it came from Ebay..



and now.













All Covette C3 spindles, brakets, dustplates,hubs and calipers.

Only thing from my impala that I reused was the steering arm with the stop cut off.



All in all, a kit from CPP or the other outfits may be cheaper in the long run.

This probably cost me $450..or more.


Ted


Edited by brickwhite on 02-04-20 09:09 AM. Reason for edit: No reason given.

 
mjc1 
Senior Member
Posts: 1583
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
02-04-20 03:56 PM - Post#2785903    
    In response to brickwhite

$450?
You did good Ted!
Looks great.

Seeing your C3 hub, it reminds me that I've always wanted to compare the C3 hub side by side with a 69-70 single piston Impala hub.
Does the hub face sit at the same height between the two? I know the Impala has a machined rotor register on the inside that the C3 doesn't have, and the C3 has a taller rotor/wheel double centering step on the outside that the Impala lacks. But I bet they are the same with some possible interchange?

1967 Grande Parisienne 4DR HT
My Flickr page



 
N_V_US_67 
Newbie
Posts: 31

Loc: Brisbane, Australia
Reg: 05-21-15
02-08-20 04:22 PM - Post#2786131    
    In response to brickwhite

  • brickwhite Said:
My C3 setup on my 66 impala.





All Corvette C3 spindles, brackets, dust plates,hubs and calipers.

Only thing from my impala that I reused was the steering arm with the stop cut off.



This probably cost me $450..or more.




Wow Ted nice...............

I'm just puzzled as to why you had to remove the end of the steering arm and what you use as a stop now?

Thanks.



1967 Chevrolet Impala SS 2 Door Coupe
327 V8, Aluminum Powerglide, 12 Bolt
Butternut Yellow
Gold Interior
Tilt Column
Power Steer
Power Disk Brakes
Air Conditioning
Bucket Seats With Console
All Original




 
brickwhite 
Poster
Posts: 71
brickwhite
Loc: Missouri
Reg: 09-05-19
02-13-20 07:19 AM - Post#2786414    
    In response to N_V_US_67

I'm just puzzled as to why you had to remove the end of the steering arm and what you use as a stop now?

It hits the caliper bracket. You wouldn't be able to install the caliper flush. You could grind on one or the other or just cut off the nub.

Ted


Edited by brickwhite on 02-13-20 07:20 AM. Reason for edit: No reason given.

 


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