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Product details
A split clamp secures this Gen II Midget inboard brake hub to the specified 38-spline rear axle. It carries a separate rotor-adapter plate and does not replace an outboard wheel-bearing hub. Bill Wood’s 1977 founding of Wilwood Engineering began a disc brake design and manufacturing business based in Camarillo, California. The range includes master cylinders, calipers, rotors, brake lines, valves and fittings for motorsport, street-performance and specialized vehicles. Component selection must consider the complete braking arrangement.
Technical Details
- Manufacturer part number: 270-12580
- Package: One clamp-hub assembly; select the rotor adapter and rotor retention hardware separately
- Component: Midget Inboard Hub - Dynamic
- Position in the specified assembly: Rear
- Material: Aluminum
- Finish: Black Anodize
- Rotor mounting arrangement: Adapter-Dynamic
- Hub-to-adapter attachment: 3.37x2.28; this is not the wheel bolt circle
- Compatible rotor-adapter output interface(s): 6 x 5.50; match the actual adapter and rotor
- Related assembly part reference(s): 300-12581; 300-12582; check the kit contents and obtain any separately required parts
- Axle spline interface: 38-spline Midget; verify the spline profile
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
With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.
