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Username Post: Converting drum breaks to disc        (Topic#271625)
chevy-truck 
Forum Newbie
Posts: 6

Reg: 12-30-10
11-05-11 10:44 PM - Post#2154903    

Love this web site, there is always some one willing to give you a helpping hand. I plan to convert my drum brakes to disc on my 67 chevy truck. Does any one know if I can use parts from another year model?

Thanks,
Alex

 
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longhorn_man 
Very Senior Member
Posts: 1931

Age: 40
Loc: Columbus Ohio
Reg: 02-02-02
11-06-11 09:15 AM - Post#2154999    
    In response to chevy-truck

disk brakes started in 71. They stayed pretty much the same untill 87. You can use the parts off any 71 - 87 for a conversion.
1972 C/10 burb, 68 nose, SLAMMED... 402/TH400/3.07 <--- Chicks dig it!
1970 C/30 Longhorn, GMC nose...Caddy 425/TH350/4.10 one of 1404 built
www.longhorntrucks.freeservers.com


 
SAM_57 
Very Senior Member
Posts: 2945
SAM_57
Loc: Hampton, VA USA
Reg: 06-20-01
11-08-11 03:29 AM - Post#2155707    
    In response to chevy-truck

I used '71 disc brake rotors and calipers on my '69. You will need to use '71 ball joints and tie rod ends. I believe the '67 tie rods are smaller than the '71's. I think I used the '71 tie rods, but had a '69 rod end on the steering link side and a '71 rod end on the spindle side.

You can also remove the complete front crossmember from your truck and swap in a later model one. It's a heavy piece and a lot of work, but you could take the donor apart and detail it and re-build it before the swap.
S.Pollard 57 Belair sport coupe 69 C/10 stepside (wife's) 84 Monte Carlo SS


 
C10 Sleeper 
Valued Contributor
Posts: 3426
C10 Sleeper
Loc: Redding Ca
Reg: 03-17-09
11-08-11 04:36 PM - Post#2155938    
    In response to SAM_57

Not trying hijack this section but I have a couple of questions as my 70 C10 brakes are all stock. How is front cross member that all of the suspension mounts to attached to the frame? What's involved with installation of the 71-72 spindles as far ball joints? 73-87 parts are much easier to locate in my area if you were to do a junk yard type swap. Does anyone have any first hand experience with pictures or halfway detailed write ups on this? I've been thinking about eventually getting to this myself as I get some time but I seem to see quite a bit of conflicting information on this topic or a lot of not so clear information that leaves a lot out.
http://photobucket.com/C10Pictures


 
JimKshortstep4x4 
Chevytalk Moderator & "10th Year" Silver Supporting Member
Posts: 4617
JimKshortstep4x4
Loc: Muskegon, MI, USA
Reg: 03-28-02
11-09-11 08:44 AM - Post#2156123    
    In response to C10 Sleeper

Attachment: 72_front_cross_member.jpg (78.99 KB) 69 View(s)



Attachment: 72_crossmember_left_side.jpg (83.74 KB) 50 View(s)



Attachment: 72_front_crossmember_right_side.jpg (77.12 KB) 53 View(s)



Attached are pictures of a 72 crossmember. There are 14 bolts total that are used to attach the crossmember to the frame. 3 are on each side in the horizontal position and 4 are on each side in the verticle position.

Jim
Member 65-66 Full Size Chevrolet Club

65 Impala SS, 400sbc, Muncie M-22
66 Impala SS, 396, TH 400
69 El Camino, 350, TH 350
71 Short bed stepside 4x4, 350/TH 350
71 Snow plow, 4x4, 350, TH 350
72 GMC Shortbed, stepside, 427/TH 400


 
MikeB 
Senior Member
Posts: 9523
MikeB
Loc: Plano, TX
Reg: 08-28-03
11-14-11 11:31 AM - Post#2157969    
    In response to longhorn_man

Keep in mind, once you get into the mid-80s, the entry-level, light duty 1/2 trucks (not all 1/2 ton trucks) used smaller rotors, which meant different calipers and spindles from the usual 71-up parts.

My 69 C-10 uses that smaller setup from an 86 truck. The brakes have served me well since I did the conversion in 1995, but might be borderline for pulling a very heavy trailer down a mountain pass.

In addition to the 86 spindles, rotors, and calipers, my truck uses a center link and tie rod ends from a 73 C-10. I also used 73 ball joints, which fit the 69 controls arms just fine.

Early Classic Enterprises has been specializing in these conversions since the 1990s and is a source of good advice and high quality parts. http://www.earlyclassic.com/

1982 C-10 SWB pickup -- Unmolested, original paint, 250 six, 3-on-the-tree
(Soon to be 350 w/Vortec heads & TH350)

Sold my 55 sedan in June 2014, having owned it 11 years.


Edited by MikeB on 11-14-11 11:55 AM. Reason for edit: No reason given.

 
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