Caliper mount kit. Left.4WD. Right.4WD. 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,Boots & Bolts. To 02/26/2018. Included with: Caliper.