Rear Disc Brake Setup for a Lowered G-Body

[Randy67]

That kit should work for you. the only issue I can think of with lowered cars is if the inner wheelhouse is too close to the back of the caliper. On my 81 Camaro, the S10 calipers clear the inner wheelhouse but LS1 calipers are real close and possibly even hit.

If I remember correctly, doesn't your rear axle have the 3-bolt flange instead of the 4-bolt? If so then the LS1 brakes won't bolt on. The flange can be modified for them to work though. BTW LS1 rear rotors are closer to 12", not 10.7" per parts listings on Rock Auto.