New (not rebuilt) Large GM Rear Calipers includes:
Calipers, D-122 pads, mounting bolts and caliper parking brake lever and spring. Piston Diameter 2 13/32. Opens to 1.3 inches 7 inches center to center for the mounting pins. Banjo Bolt thread size 7/16-20.
Part Number 3121 $320.00pair (left and right)
These calipers come from 76-78 Eldorado. These calipers do not have a bracket to hold the cable housing. You must fabricate one off of the axle housing. See 3120 if you need a caliper with a bracket.
(We do not have the Bracket, Lever, and Spring for sale separately)