I have a g-body I am working on building right now, and I am having some difficulty tracking down some information, I was hoping someone here could point me in the right direction.

I am doing a brake swap on the front of the car using B-body spindles and 86-92 12" 1LE rotors. Will the calipers from 93-97 or 98-02 fit on these rotors? I can't seem to find an answer as to the specs. of the factory calipers for these ranges (width/diameter of stock brakes, and 1 or 2 piston design). I am pretty sure 98-02 have 12" rotors, but not sure about 93-97.

Also, looking up upgrade the 8.5" 10bolt to disc brakes as well, and with a little work I know an F-bodies brakes will go on......what is the difference if any between 93-97 and 98-02 rear brakes?

Thanks

 

98-02 brakes are roughly an inch bigger on all 4 wheels compared to 93-97. I believe 98-02 front calipers are dual piston vs 93-97 only being one.

 

98-02 rotors are 12" (11.9"). The calipers are 2 piston. The outside dimensions are the same as the C5 calipers except the casting process was different the C5 has longer ribs and the C6 pistons are smaller.

Why am I telling you all this? Because if you can fit the LS1 calipers then you can fit the C5 calipers and both work with the C5 13" (12.9") rotors.