Brand New Casting Approved and Licensed by GMNo core required.Stainless Steel SleevedDOT 5 (Silicone) Brake Fluid is not recommended
Why go with O-Rings? When lip seals sit for a period, they leak brake fluid. If used with out rotors, spindles, loose bearings or are driven hard; they can suck air into the caliper fluid area causing a loss of brake pedal, called (by GM engineers) reverse air oscillation. Because of these problems, GM quit using lip seals in the 1982. O-Ringseals eliminate most lip seal problems.
Since GM discontinued the calipers you could only buy remanufactured castings or cheap replacements that had to be sleeved because of poor quality; those days are over. This kit includes:
LH Front O-Ring Brake Caliper w/Pads-New RH Front O-Ring Brake Caliper w/Pads-New LH Rear O-Ring Brake Caliper w/Pads-New RH Rear O-Ring Brake Caliper w/Pads-New Disc Brake Pad Set