This Item is a New AME High Performance Carbon Disc Brake Rotor & Pad Kit, Brake Service Kit. Designed for Heavy Duty Fleet, Off Road, Plowing, Work TruckIt will fit the following years and models:Replacement Parts For 2011-2012 Ford F450 Crew Cab Pick Up OnlyReplacement Parts For 2011-2012 Ford F550 Cab & Chassis Crew Cab Pick Up OnlyKit Includes: (fits for rear)2x Part# PR92805 AME High Performance High Heat Carbon Rear Disc Brake Rotors1x Part# ASD1066 AME High Performance Semi Metallic Rear Pads, with installation hardware, boots1x Part# 847 Rear Parking-Emergency Brake Shoes, both sides rear, fit inside the rear rotor.1x Part# 7337K Rear Parking-Emergency Brake Shoes, both sides rear