Caliper support retainer kit. Front. Left.W/REAR DRUM BRAKES. Right.W/REAR DRUM BRAKES. A pin used with a float style Caliper, which Mounts the Caliper to a Caliper bracket through a Caliper guide pin bolt, allowing the Caliper to slide freely during braking. Disc Brake Caliper Bolt. Incl.Guide Pins,Bolts & Boots. Kit. Included with: Caliper support.