76 monte drum to disc brake conversion? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 11-06-2012, 01:57 PM
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76 monte drum to disc brake conversion?

Hey guys I need some help..im removing my rear rend to send it to the shop next week..i have a 76 monte carlo and I dont want to use the rear drums..i also dont want to buy a disc conversion kit from summit they are expensive.and they dont include the calipers and discs that I want..i was wo.dering...is there a way to get around that kit? do I only need the backplate for the swap or?? Thanks for the help guys

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Old 11-06-2012, 02:19 PM
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what calipers are you wanting to use?
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Old 11-06-2012, 02:24 PM
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I want to use wilwood two piston calipers..but the point is im not trying to spend so much on the conversion...if doable...i would rather remove the disc brakes from another car at the junk yard..then install my rotor, and caliper of choice
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Old 11-06-2012, 02:31 PM
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To use the Wilwood caliper will take either a kit from Wilwood or duplicating the bracket for the caliper yourself. Wilwood used to make some GM-style floating capliers. You can get a kit minus the capilers from a few places like SUmmit and Speedway
The rear disc from a 94-96 Impala SS will bolt on to your housing and uses the internal shoe parking brake.
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Old 11-06-2012, 02:43 PM
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Can you elaborate on how I can duplicate the bracket for the caliper myself? thanks for the unfo btw I appreciate it
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Old 11-06-2012, 02:50 PM
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Wilwood calipers require Wilwood brackets. The only way to duplicate the bracket is to have one to copy. You could just use a complete rear disc brake system from a 4th gen F body. They have good PBR calipers and you can buy cross drilled rotors for them. They also bolt to your housing ends.
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Old 11-06-2012, 02:51 PM
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The simplest brackets are the weld-on style



You'll need the rotors, calipers, pads to align the bracket for welding

Wilwood Caliper Bracket from Speedway Motors, America's Oldest Speed Shop
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Old 11-06-2012, 04:58 PM
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Quote:
Originally Posted by lmsport View Post
The rear disc from a 94-96 Impala SS will bolt on to your housing and uses the internal shoe parking brake.
Unfortunately the Impala uses a 5 x 5" bolt circle, the Monte is 5 x 4.75. I don't think there are readily available rotors for the smaller bolt circle that swap onto the Impala backing plates and fit the drum e-brake shoes.
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Old 11-06-2012, 05:33 PM
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Originally Posted by joe_padavano View Post
Unfortunately the Impala uses a 5 x 5" bolt circle, the Monte is 5 x 4.75. I don't think there are readily available rotors for the smaller bolt circle that swap onto the Impala backing plates and fit the drum e-brake shoes.
Thats a good point.
Redrilling the axles and rotors to the small pattern is not bad job.
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Old 11-08-2012, 10:48 PM
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Im going to look into the 4th gen f body I hope they will fit..as for the welding...i dont know.if I would want to go that route simply because I dont know how..i just want a good.brake system since I am swapping to a 454 that is why I was leaning towards wilwood
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Old 11-09-2012, 08:56 AM
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The drum brakes on that rear end are larger than most cars. There are some early Camaro and Chevelle people who want to swap to the larger drums, so you might be able to sell those brakes and get a little money out of them. I think you have the 11 inch drums and the early Camaro and Chevelle had 9 inch drums.
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Old 11-09-2012, 09:36 AM
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to the o/p if you can.. find a 78-81 t/a with 4wdb get the e brake cables, the master and proportioning valve, the clappers and maybe the rotors(if they look turnable), the backing plate/clapper mount
the clappers are for rebuild or cores.. that be the cheapest... also same year caddy's(reardrive)
you can still get everything new.. rotors/clappers at your local parts house. allong with the master...
the p/p valve and backingplate/clapper mount you'll have to get from ames performance/yearone or other sources.. the e brake cables.. you can get from local jobbers or resto houses
good luck
fyi some 81 camaros had the ws6 rear disc also.. not many but some
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Old 11-09-2012, 10:37 AM
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Quote:
Originally Posted by big gear head View Post
The drum brakes on that rear end are larger than most cars. There are some early Camaro and Chevelle people who want to swap to the larger drums, so you might be able to sell those brakes and get a little money out of them. I think you have the 11 inch drums and the early Camaro and Chevelle had 9 inch drums.
You are correct. Most of the 73-77 A-body cars came with 11x2 rear brakes. The drums have the correct 4.75" bolt circle to use on the earlier cars. This is a nice upgrade from the stock 9.5x2 brakes on those cars.
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Old 11-20-2012, 03:29 PM
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Hey guys sorry for the late reply...I was wondering...is a ten bolt rear end from a 1990's blazer and a 2000 camaro ls1 a 8.5? I have been searching all over craigslist for a rear end that already has the posi and the disc brakes but i am not sure if they fit my application...
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Old 11-20-2012, 03:33 PM
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and an s10??
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