Left.RWD. Right.RWD. 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.Bolts,Boots. Incl.Boots,Bushing. Part included Caliper support. mount slide. sleeve. Bracket. Disc Brake Bolt Kit. Guide. Hardware Kit. Included with: Caliper mount, Caliper support.