DB-35 Disc Brake Caliper features a zinc plated body, stainless steel brake pad guides and anti-rattle clips which help provide superior corrosion resistance especially in salt water applications. It also includes pre-loaded organic brake pads. This caliper has a cast-in caliper mounting bracket so that it can be used with 10" slip-on style rotors. Note: All UFP 3.7K Non-Integral Disc Brake Kits (Cap Style) include a caliper mounting spacer bracket. This spacer is ONLY necessary when the disc brake kit is used in conjunction with all DEXTER AXLE 008-248 idler hubs (3.5K axle, 5-4.50 BC, studded 1/2"-20, 1.718 grease seal). The spacer is essential to accommodate for the unique internal bearing placement of the Dexter hub. Now Commonly Used on Ez Loader Trailers Suits 10.75 inch UFP Slip Over Rotors Replacment Caliper for part #250-034105,089-011-00,