This is a replacement caliper mounting bracket for Kodiak slip on 12 inch rotors. The bracket works with Kodiak 6 Lug brake kits that are either slip-on or integral design, and will attach to the 5 hole mounting plate on a 5,200lb or 6,000lb axle. This is Kodiaks part number CMB-12-U-DAC. The brackets are dacromet coated to help prevent rust. The bracket will work on either the left hand or right hand side of the trailer. Kodiak offers a 3 year warranty on all of their dacromet coated parts. Installation of this Caliper Bracket requires (5) bolts per side. We have these available as add ons to this product. In addition, we offer Brake Parts Cleaner Spray Non-Chlorinated as a way to clean up grimy and greasy components like your trailers caliper.