Leaderboard

Years ago I upgraded my 90 coupe using 2000 Camaro calipers, brackets and rotors. Decided to do the same with the 90 convert. Again, 2000 Camaro calipers and brackets. Ordered drilled slotted Camaro rotors. Tried installing the calipers on the rotors and the caliper bracket bolt holes would not reach and align with the bolt holes on the knuckle. Did not change the knuckle, so it is OEM Reatta. Bolt pattern on the new rotors are a match to the hub and they fit into the Camaro calipers just as they should so the rotor thickness is OK. Just that the rotor diameter seems too large by about 3/8-1/2". Checked the Camaro calipers and brackets against an old set I had and they are identical. Compared the distance between the rotor "hat" and its outer edge [this would be the total machined surface available to the brake pads] between the coupe and the new rotors I'm trying to put on the Convert. They seem to be the same at about 2.69". According to Delco, Camaro rotors are supposed to be 11.92" in diameter and the new ones measure about 11 7/8" so that is correct. Either I can no longer hold a caliper up to a knuckle as I've done far too many times over the years, or something is amiss with the new calipers.