Enhanced Stopping Power: Upgrade your Ford 9 inch or 8 inch rearend with this disc brake kit, providing superior stopping power compared to drum brakes., Complete Kit: The package includes two bolt-on caliper brackets, two 11-1/4" vented rotors, two GM metric style calipers (non-emergency brake), brake pads, and all necessary hardware for easy installation and increased stopping performance., Versatile Fit: Designed to fit over an axle with a maximum flange diameter of 6-1/4" O.D., this kit is compatible with "old" and "new" style Big Ford Only, offering flexibility for various applications., Durable Construction: The rotors have a 2.780" center hole and feature both 5 on 4-1/2" and 5 on 4-3/4" bolt circles, ensuring a secure and reliable connection. The components are made from high-quali.