The Motobilt GM 14 bolt full float rear disc brake brackets are a bolt on design. The Motobilt MB4022 disc brake brackets are a bolt on design for the GM Full Float rear axle. The brackets are CNC laser out out of 3/8 inch thick P and O steel plate and CNC bent. Brackets have multiple holes so they can be clocked or mounted in the optimal position for your application. The mounts are sold as a pair. GM 14 bolt full float rear disc brake brackets CNC laser out of 3/8" thick P and O steel plate Ships raw metal 12 holes to provide adjustment for caliper location 7/16"-20 thread for the slide pins Sold as pair ~8 lbs per set Included Parts: (2) disc brake brackets Applications for the brake parts include but are not limited to 1973 - 1987 Chevrolet C20, C30, K20 and K30 single rear wheel with the GM 10.5" 14 bolt full floater rear axle (stud mounted drums, NOT the slip fit drums) 1973 - 1987 GMC C25, C35, K25 and K35 single rear wheel with the GM 10.5" 14 bolt full floater rear axle (stud mounted drums, NOT the slip fit drums) Brand: Motobilt Part Number: Motobilt MB4022 Additional Parts Required: The brake calipers, pads, rotors, and slide pins are all sourced from a 1985 Chevrolet K20 4x4 (JB6 is the smaller caliper piston and JB7 is the larger caliper piston): Left caliper (1 required): Napa N4674 Right caliper (1 required): Napa N4673 Rotor (2 required): Napa 4885677 Brake pads (1 required): Napa PFB PF728AM Caliper slide pins (4 required): AFCO 10160 Banjo bolts 10MMX1.50 (2 required): Dorman 13940 Brake line (2 required): Napa H86572
