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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering> 76 monte drum to disc brake conversion?
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Thread: 76 monte drum to disc brake conversion? Reply to Thread
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Topic Review (Newest First)
01-01-2013 02:41 PM
big gear head I don't know if there will be any mods required, but they will fit as easy as the 2nd gen brakes. You can also look at S series truck disc brakes. They use the same bolt pattern as the car rear ends.
01-01-2013 02:36 PM
angelf0926 so i should just go to a junkyard and remove the entire brake system from a gen 4 f body? no mods will be necessary when installing?
12-31-2012 10:28 PM
big gear head The WS6 disc brakes were not available on the Camaro. They were Trans Am only and were only used on the '79 to '81 second gen cars. They had cast iron calipers and were not considered to be very good. There are much better options out there. 4th gen F body disc brakes are much better and will adapt to the Monte Carlo rear end. The F body second gen rear end wil not work in the Monte Carlo unles you use ladder bars or after market 4 link. It was comon for the '79 to '81 Trans Am to have 2.56 gears, which would make the differential a 2 series and only good for 2.56 and 2.41 gears.
12-31-2012 08:54 PM
angelf0926 Hey guys I know this conversation has ended a while ago..I was on Craigslist today and found a differential..its from a 1970-1981 camaro posi disc brake rear end..the guy told me this rear end is for leaf springs..but I really only wanted it since it was already posi and had the discs...he quoted $100 for the backing plate and calipers...I don't have much knowledge when it comes to this topic...but will this be enough to at least bolt on some rotors?? Is it a reasonable price???
Here's the link:
Http://inlandempire.craigslist.org/pts/3485744874.html

BTW does this rear end fit my application??
11-20-2012 07:13 PM
gearheadslife iirc the impala and taxi brakes are a bolt on.. not 100% sure tho..
11-20-2012 06:19 PM
big gear head The full size blazer had the 8.5 rear end, but the housing ends were larger, so the brakes wouldn't bolt to a car rear end. The Camaro rear end is the little 7 5/8 10 bolt, but the brakes will bolt to other car rear ends. The S series trucks had 7 1/2, 7 5/8 and 8 1/2 rear ends. The 4.3 5 speed trucks has 8.5 rear ends, but the axle tubes are tapered down to 2 5/8 instead of 3 inches. The S series truck disc brakes had the internal shoe parking prake.

None of these rear ends will fit your car, but you can use some of the brakes. The only rear ends that will fit your car are the '73 to '77 Monte Carlo, Malibu, El Camino and other GM clones of these cars. Nothing else will bolt in without a lot of modifications.
11-20-2012 03:33 PM
angelf0926 and an s10??
11-20-2012 03:29 PM
angelf0926 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...
11-09-2012 10:37 AM
joe_padavano
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.
11-09-2012 09:36 AM
E.Furgal 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
11-09-2012 08:56 AM
big gear head 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.
11-08-2012 10:48 PM
angelf0926 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
11-06-2012 05:33 PM
lmsport
Quote:
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.
11-06-2012 04:58 PM
joe_padavano
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.
11-06-2012 02:51 PM
lmsport 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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