Wilwood Rear XRZ Sprint 46-Spline Clamp Hub and Eight-Bolt Rotor Adapter Kit

This XRZ kit combines a 46-spline Sprint clamp hub with an eight-bolt dynamic rotor adapter. The five-bolt hub-to-plate connection is separate from the rotor circle, and rotor T-nuts and bolts are additional parts. Camarillo, California is home to Wilwood Engineering, founded by Bill Wood in 1977. Wilwood designs and manufactures disc brake systems, with calipers, brake rotors, master cylinders, fittings, valves and lines serving motorsport, street-performance and specialized uses. Select individual parts to meet the needs of the complete brake system.

Technical Details

• Manufacturer part number: 270-17649
• Rotor mounting arrangement: Adapter-Dynamic
• Hub-to-adapter attachment: 5x4.875; this is not the wheel bolt circle
• Compatible rotor-adapter output interface(s): 8 x 7.00; match the actual adapter and rotor
• Related assembly part reference(s): 300-7107; check the kit contents and obtain any separately required parts
• Axle spline interface: 46-spline Sprint XRZ; match the specified DMI/Winters axle profile
• Package: One clamp-hub and rotor-adapter kit. Additional rotor T-nuts and bolts are required and are not included.
• Component: Sprint Inboard Hub Kit - Dynamic
• Position in the specified assembly: Rear
• Material: Aluminum
• Finish: Type III Anodize

Fitment & Compatibility

For the specified rear inboard racing axle and matching rotor adapter. Confirm the spline count and profile, axle clamp engagement, rotor alignment and caliper clearance. This part mounts the brake rotor; it is not an outboard wheel hub.

Wilwood component specifications

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.