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Username Post: 1955-1964 third member bolts        (Topic#357689)
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-17-19 06:58 AM - Post#2773367    

.



Edited by lone star on 08-18-19 01:47 PM. Reason for edit: No reason given.

 
Ecklers AutoMotive
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-18-19 06:31 PM - Post#2773514    
    In response to lone star

????????????????????????? ??????????????.



 
rrausch 
"15th Year" Silver Supporting Member
Posts: 14056
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
08-20-19 05:12 AM - Post#2773631    
    In response to DZAUTO

!!!

1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
Swifster 
Poster
Posts: 77

Loc: Bradenton, FL
Reg: 05-26-18
08-20-19 06:38 AM - Post#2773643    
    In response to rrausch

I'm guessing it's not the nuts, but the studs in the axle housing for the third member
.

Tom

1963 Chevrolet ?
$121.00


 
pvs409 
"7th Year" Gold Supporting Member
Posts: 2588
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
08-20-19 07:52 AM - Post#2773650    
    In response to Swifster

  • Swifster Said:
I'm guessing it's not the nuts, but the studs in the axle housing for the third member
.



Yes that’s what he wrote before it disappeared from his post.
He had to cut off studs on the housing to remove his rear end, and wants new or used replacement studs.
He can’t find any studs for sale.
Paul

57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
http://paulstensland.com


 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-20-19 08:57 AM - Post#2773663    
    In response to pvs409

I would be curious to know why he had to cut off the studs to remove the rearend??????



 
junky 
Valued Contributor
Posts: 3102

Loc: Northeast CT
Reg: 06-27-10
08-20-19 03:12 PM - Post#2773692    
    In response to DZAUTO

Just a guess on my part, it is possible that someone either cross threaded the nuts, or somehow they spun the studs and stripped out the serrations that keep the studs in place.
I went to my parts book to see if I could find a part number, and quite to my surprise in group 5.510 I find a bolt (8 required)for the case assembly 3/8"-16 x 2 3/4" (right hand thread) part #454908, and then there is another with a left hand thread (same dimensions)1960 - 1964 W/P/Trac (I assume Positraction?)Part #3777003.
Now, all this is conjecture on my part for these part numbers, since I wasn't able to find a picture breakdown showing exactly where these bolts go. I am thinking that these are for the gear assembly inside the differential housing. I also tried to find it under "stud", because that to me would be the correct term for the fastener, but couldn't find anything in the index listed under "stud" that corresponded to the differential.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5622
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
08-20-19 08:08 PM - Post#2773719    
    In response to junky

Chevrolet calls them a Bolt. 3/8-24 x 1-25/64" p/n 3786363.
Yes, they are fine thread, NOT 3/8-16.

Verne



 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-20-19 08:26 PM - Post#2773720    
    In response to junky

  • junky Said:
Just a guess on my part, it is possible that someone either cross threaded the nuts, or somehow they spun the studs and stripped out the serrations that keep the studs in place.
I went to my parts book to see if I could find a part number, and quite to my surprise in group 5.510 I find a bolt (8 required)for the case assembly 3/8"-16 x 2 3/4" (right hand thread) part #454908, and then there is another with a left hand thread (same dimensions)1960 - 1964 W/P/Trac (I assume Positraction?)Part #3777003.
Now, all this is conjecture on my part for these part numbers, since I wasn't able to find a picture breakdown showing exactly where these bolts go. I am thinking that these are for the gear assembly inside the differential housing. I also tried to find it under "stud", because that to me would be the correct term for the fastener, but couldn't find anything in the index listed under "stud" that corresponded to the differential.



The 8 bolts (4 per side) with 3/8x16 threads are the bolts which attach the brake backing plate and the axle bearing retainer.
This is where they go.


The 8 left hand threaded bolts (60-64 posi units) are used to hold the 2 halves of the posi together. The 57-59 posi units used 3/8x16 right hand threaded bolts.
You can see the heads of the left hand bolts here.



I suspect these are the bolts (10) that he needs. They have round heads and serrations below the head to hold them in place in the holes in the axle housing.



On 55-57 axle housings, the rearend center section was secured with plain nuts and crushable copper washers (to seal the studs from oil weeping through).
The 58-64 axle housings used nuts with a captured/swedged steel washer.




 
pvs409 
"7th Year" Gold Supporting Member
Posts: 2588
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
08-20-19 09:45 PM - Post#2773724    
    In response to DZAUTO

Tom your picture of the actual rear end with the fixed studs in the housing for the posi is what he asked for that he broke off.

Paul



57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
http://paulstensland.com


 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-21-19 12:11 AM - Post#2773728    
    In response to pvs409

  • pvs409 Said:
Tom your picture of the actual rear end with the fixed studs in the housing for the posi is what he asked for that he broke off.

Paul





I do not know where to get those bolts, BUT, those bolts will be the same in ALLLLLLLLLLLL 55-64 axle housings. SURELY there are some junk axle housings available that still have the bolts. Simply screw a nut onto the stud until it is even with the end of the stud and whack it a good lick. The stud will come right out.



 
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-21-19 05:57 AM - Post#2773741    
    In response to lone star

  • lone star Said:
.




thanks.

I found them. I hope. they are called ring gear bolts. kind of hard to find it seemed. ARP makes a set for about 50 dollars. rock auto has them for 50 cents each. I just need 2. lets see what rock auto sends me



 
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-21-19 05:59 AM - Post#2773742    
    In response to DZAUTO

they were spinning. the serrated part inside the housing wore out...



 
junky 
Valued Contributor
Posts: 3102

Loc: Northeast CT
Reg: 06-27-10
08-21-19 06:19 AM - Post#2773745    
    In response to DZAUTO

DZ... Might you know if the nuts with captured/swaged steel washer is still available? If so, might you have a part number?

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-21-19 07:23 AM - Post#2773751    
    In response to junky

  • junky Said:
DZ... Might you know if the nuts with captured/swaged steel washer is still available? If so, might you have a part number?



No, they are not--------------at least I've never had any success finding some. When I've pulled rears at salvage yards, I've learned to pick up the nuts/washers off the ground. BUT, unfortunately, many of the washers are rust pitted (and won't seal around the studs) and the washers are loose and fall out from the nut.
Also, my preference is new crushable copper washers and regular nuts (as used on 55-57 cars). I think the copper washers does a better job of sealing around the threads of the studs. The only down side (and it really is NOT a down side) to using copper washers is that they have to be re-tightened periodically until they take a final crush (the nuts will no longer turn), and that is a non issue for me.



 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-21-19 02:29 PM - Post#2773771    
    In response to lone star

  • lone star Said:
  • lone star Said:
.




thanks.

I found them. I hope. they are called ring gear bolts. kind of hard to find it seemed. ARP makes a set for about 50 dollars. rock auto has them for 50 cents each. I just need 2. lets see what rock auto sends me



NO, they are NOT, repeat, NOT ring gear bolts!!!
Ring gear bolts are for attaching the ring gear to the flange of the differential.
Here are where ring gear bolts are used.


Attachment: 3-series_shallow_depressions.jpg (59.74 KB) 2 View(s)






 
55Brodie 
Contributor
Posts: 281
55Brodie
Age: 67
Loc: Little River, SC
Reg: 12-26-15
08-21-19 04:39 PM - Post#2773776    
    In response to lone star

https://www.minimania.com/part/21A2064-P/Classi c-M...

One of these sizes might work for you.



 
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-21-19 05:47 PM - Post#2773783    
    In response to DZAUTO

What are they called then?

Rock auto lists them as 3/8 -24 the picture looks like what i hammered out of the housing. They are listed as ring gear bolts



Edited by lone star on 08-21-19 05:54 PM. Reason for edit: No reason given.

 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5622
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
08-21-19 07:46 PM - Post#2773791    
    In response to lone star

Ring gear bolts have no spline under the head. They thread into the ring gear.

Verne



 
ragtp66 
Contributor
Posts: 795
ragtp66
Reg: 12-09-07
08-22-19 06:54 PM - Post#2773838    
    In response to lone star

Would there be any problem tack welding the studs to the housing from the inside? I would think it wouldn't be hard with a mig? Snug a nut up on the stud with chunk removed so it doesn't move around.

Assuming you can pull the housing out. Just use a nut splitter or grinder to cut the nut off.

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5622
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
08-22-19 07:47 PM - Post#2773843    
    In response to ragtp66

If you're talking about using a 3/8" stud and welding it from the inside, I don't think that would work. Since the original studs have a spline under the head to keep them from turning, the hole in the housing is larger than 3/8" which would make it impossible to center the stud in the hole.

It sure would easier (I'd think) to find a used housing and drive out the original studs.

Verne



 
maddog1949 
"4th Year" Silver Supporting Member
Posts: 96
maddog1949
Loc: alabama
Reg: 01-05-10
08-23-19 04:12 AM - Post#2773859    
    In response to Verne_Frantz

Full Size Chevy Housing To Differential Gasket, 1958-1964
Part #: 40-164937-1 seen this gasket on Late great chevy site



 
MonteMike79 
Poster
Posts: 16

Loc: Erie, PA
Reg: 11-29-16
08-23-19 04:34 AM - Post#2773861    
    In response to ragtp66

  • ragtp66 Said:
Would there be any problem tack welding the studs to the housing from the inside? I would think it wouldn't be hard with a mig? Snug a nut up on the stud with chunk removed so it doesn't move around.

Assuming you can pull the housing out. Just use a nut splitter or grinder to cut the nut off.



That may be his only option. I had the splines strip out on a couple of the upper A arm cross shaft frame bolts and had to tack weld them because I couldn't find new ones.



Edited by MonteMike79 on 08-23-19 04:34 AM. Reason for edit: No reason given.

 
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-23-19 04:41 AM - Post#2773863    
    In response to ragtp66

might come to this. I have a mig. its the first idea I had also. rock auto bolts showed up. they aren't long enuff. womp womp



 
62BillT 
"18th Year" Silver Supporting Member
Posts: 5802
62BillT
Loc: Moneta, VA
Reg: 09-24-01
08-23-19 05:16 AM - Post#2773864    
    In response to ragtp66

Although a limited supply, I have some of these Rear-End Bolts (Studs) available.



Member:
-National Impala Association
-Vintage Chevrolet Club of America


 
lone star 
Contributor
Posts: 201

Reg: 08-24-08
08-23-19 06:53 AM - Post#2773868    
    In response to 62BillT

  • 62BillT Said:
Although a limited supply, I have some of these Rear-End Bolts (Studs) available.





I just need 2. let me know




 
DZAUTO 
Senior Member
Posts: 8710

Loc: Mustang, OK, USA
Reg: 12-25-99
08-23-19 08:56 AM - Post#2773875    
    In response to maddog1949

  • maddog1949 Said:
Full Size Chevy Housing To Differential Gasket, 1958-1964
Part #: 40-164937-1 seen this gasket on Late great chevy site




55-64, as well as 56-62 Corvette.
They are also readily available at auto parts stores such as NAPA, O'Reilly, etc.



 
ragtp66 
Contributor
Posts: 795
ragtp66
Reg: 12-09-07
08-23-19 07:46 PM - Post#2773922    
    In response to Verne_Frantz

Verne,

I just meant welding the existing stud in place to the housing but from the inside of the housing so you still have a good flat gasket surface. I assumed if the stud was spinning that the hole was slightly oversized so even a new stud would not help.

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 
62BillT 
"18th Year" Silver Supporting Member
Posts: 5802
62BillT
Loc: Moneta, VA
Reg: 09-24-01
08-23-19 08:30 PM - Post#2773925    
    In response to lone star

  • lone star Said:
  • 62BillT Said:
Although a limited supply, I have some of these Rear-End Bolts (Studs) available.





I just need 2. let me know




I'll send a PM.

Bill


Member:
-National Impala Association
-Vintage Chevrolet Club of America


 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5622
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
08-24-19 07:09 AM - Post#2773942    
    In response to ragtp66

  • ragtp66 Said:
Verne,

I just meant welding the existing stud in place to the housing but from the inside of the housing so you still have a good flat gasket surface. I assumed if the stud was spinning that the hole was slightly oversized so even a new stud would not help.



I thought the OP said the studs were cut off??

Verne



 
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