Constructed to be a superior upgrade kit, these 11" front disc brakes use the original spindle to make the installation process even easier. The single-piston calipers grip the rotors firmly with an impressive amount of hydraulic force to ensure that you can come to a complete stop quickly and safely. This kit will increase the effectiveness of your front brakes without having any effect on the turning radius. Rotor diameter 11"/279.4mm. This kit will not fit with the original 14"x5" factory steel rims.