We have 2 used Wilwood GM III Brake Calipers #120 5289 that are Right & Left Hand.The piston size is close to 2.750". The bolt mounting pattern is 7" center to center.You might be able to use these.
NEW WILWOOD GM III BRAKE CALIPER,RACING,.810",2.750"
Two (2) Wilwood GM D52 Caliper 120-10936
Wilwood 150-8939K Brake Pads Gator BP-10 GM III Caliper Front Axle Universal Set
Two (2) Wilwood Brake Caliper GM D52 Aluminum Black 2" 2-Piston Front Rear
(2) Wilwood Brake Caliper GM D52 Aluminum Red 2" 2-Pistons Front Rear
