HELP! Rear Brake Calipers
 

I just bought my 1990 Formula 350, and i need to do rear brakes on it. i know the rear calipers have a screw-in piston for the E-Brake to work. How do i push this kind of piston back into its bore? As far as I know, you can't just use a C-Clamp and push it in. Any help would be appreciated ASAP!

You should have the aluminum rear calipers if the car is a 90. In 89 they got the 11.65" rotors and PBR aluminum calipers. So either you have the new ones and you should be able to push the caliper in a bit, or you dont really have a 90, or someone swapped the rears and or brake setup. Sorry though I dont know how to help you.

James

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If the women don't find you handsome they should at least find you handy
88 GTA Notchback with 91 gfx and ROH Snypers
Aftermarket T-56 (pain in the A$S but worth it)
Lots of things to do still

One my moms caprice, I had to buy a tool that goes on the end of a ratchet. Its a box with tabs on all 6 sides. Each side is for a diffrent application. I just had to push and turn. Hope this helps.

I didn't need that tool, but I have heard that some cars need it, I don't know what years or anything. But anyway, if you don't need that tool it is really easy to do the rear brakes.

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90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

LIKE A ROC

Hey, 90Form350, unless your calipers are in really bad shape, you should be able to use the C-clamp. I know I can, as long as I'm
"gentle"...(leave the monkey in the tool box for another project https://www.thirdgen.org/messgboard/biggrin.gif ). Just take care in the process. Clamp down SLOWLY, and work the piston back into the caliper!

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'88 Formula 350
Bright (VERY bright) red. Mods? yep, but never enough!
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Well, he has different calipers, 3rdGem. But yeah, my Haynes book shows a c-clamp being used for the 82-88 rear pistons. They stress that the clamp should go to the "side" of the center bolt of the piston, not on top of it.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
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