Wilwood’s XRZ Sprint 46 tooth splined inboard hub & adapter kit provides a basis to provide dynamic rotor mounting of 8 x 7.00" bolt pattern rotors. The Gen III Hubs new spline enables easy quality/precise fit for DMI and Winters 46 spline axles. Using new 5 bolt rotor plate to hub attachment for added stiffness and user-friendly assembly/disassembly. Rotor plate has a smaller overall dimension from OD to ID with thicker material to add extended life and improved overall stiffness. Rotor plate can be removed without removing axle spline saver. Additional T-nuts and bolts are required for rotor mounting and are not supplied with the clamp kit. T-nut kit is available under part # 230-14645.