Looking for a rear disc Brake setup for 88-92
camaro or firebird/ is there any other GM setups that would work ? Earlier or later models ? Thanks

Stay away from the cast iron caliper type used from 85 to around 88. They are troublesome, the self adjusters don't adjust right, leading to low brake pedal.
David

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Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

Hey is a disc brake rear end from a 79 or 80 model trans am a bolt in for a 67 to 69 Camaro?

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johnny

I think I've read that the late 70's firebird brakes will bolt on.
There are lots of rear brake kits on the market.
David

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Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

Johnnyr, The 79-81 TA disk brake is a bolt on
David, I have this setup on my car using the 79-81 TA master cylinder, proper short rod for it and have all the parking brake hardware installed and working. The brake pedal is inconsistant as sometimes it seems low while other times it feels great. I just don't know until I hit the brakes. How does this system self adjust? The calipers are both new. Do you have any idea why the brake pedal would be inconsistant. If anyone kows I figure it would be you. I think I have printed everything about Camaro's off of your website and plan on trying your ideas for cheap larger front brakes. As a side note I got to sit in a Bradley GT last night. I am tall but skinny and it was almost impossible to sit in. Legs barley making it around the steering wheel then my right leg right against the shifter. I don't know how people can drive those things

There was a Stirling meet at Laguna Seca about 15 years ago, they covered the track with them. Must have been over 40 of them!

Your problem might be excessive end play in the axles. The same problem happens with JL8 conversions.
Try shimming behind the C clips with a spacer. I've heard a valve spring spacer with a little filing will work well.
Get the end play close to zero. If you go too tight it may affect the positraction function.
What size are the rotors in dia and width?
David

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Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

David, Good point about the axle runout. I will have to watch it myself. pdq67

Wow, I would never have thought of that but it makes sense. I knew you would have some idea. I'll have to check it out. Almost everything inside is new, Moroso Brute Strength, 3:90, all new bearings and seals. The housing and axles are perfect as the rear sat in my father in laws garage for many a year. I don't remember the rotor diameter but it was at least 11 inch, definately not smaller than that. I had the 79-81 setup on the floor next to the 82 and up setup and it seemed like I was comparing Corvette to Chevette stuff. Everything was larger and seemed more durable on the 79-81 setup. I can let you know the specifics but I only have the internet at work and I am out until Monday after today. So to shim it you mean to pull the c-clip and get a washer (the right thickness of course to remove most or all of the endplay) and fit it over the end of the axle then re-install the c-clip over that? Wouldn't that bring the axle in closer to the center? Can the axle come in closer or does it ride against the cross shaft and come out for the endplay that you feel?

Nevermind. I knew as soon as I sent that I would figure it out. The cross shaft keeps the axle from moving in and the c-clip keeps it from moving out so adding the washer between the axle and c-clip keeps the axle tighter against the cross shaft. Ok I understand now, just thinking out loud. Thanks!

Yes, put the spacer between the side gear and the C clip. You will need around .015" to .030" thick shims.
There used to be thicker C clips to do this but I don't think they are available anymore.
If you go too thick you may prevent release of the positraction.
Non posi rears are looser than the posi type, which would knock the caliper pistons back even farther.
David

------------------
Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

[This message has been edited by davidpozzi (edited 11-16-2000).]

They've got various thickness valve spring shims for sale somewhere. I think Competition Products. Reasonably priced.

They are hardened too, so shouldn't wear much. pdq67

The rear disc brake setup is being used on an austin healey. The camaro Rotors, calipers and backing plates are being used.
However the rotors require redrilling / machining and I am looking for rotors or a setup that would reqire less machine work if
possible.