Wilwood's XRZ Sprint 46 tooth splined inboard hub kit provides a basis to provide dynamic rotor mounting in either a T-nut or lug mount drive style using new 5 x 4.875” rotor adapters. The XRZ 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. Wilwood's XRZ Sprint 46 tooth splined inboard hub kit provides a basis to provide dynamic rotor mounting in either a T-nut or lug mount drive style using new 5 x 4.875” rotor adapters. The XRZ 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.