was going to use this on my 3rd gen with a Moser 9" but went ahead and bit the big one for aerospace brakes instead. These are set up with brackets for a 9" with big housing ends. Uses a corvette type rotor and caliper. Rotors are cross-drilled and slotted and are brand new. Calipers I can't vouch for because I never used this in my car. Was working when pulled from the other car. Looking for $150 plus shipping from Pensacola. Thanks.......
oh, and the stud holes are opened up for 1/2 studs too.

 

are these off an ls1 rear?

 

it looks like the calipers could be 4th gen stuff but the rotors were from a late c4 vette when I tracked the numbers on the old factory rotors I had originally. Probably the same offset.