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Product details
Drilled wheel studs identify this rear 55XD configuration. The bolt-on eight-hole rotor plate is a separate interface from the large Wide 5 wheel pattern, and racing rules may restrict drilled studs. Bill Wood founded Wilwood Engineering in 1977, and the manufacturer is based in Camarillo, California. Wilwood designs and manufactures disc brake systems alongside calipers, master cylinders, rotors, fittings, brake lines and valves. The motorsport, street-performance and specialized ranges depend on components selected to work within a complete braking system.
Technical Details
- Manufacturer part number: 270-12111D
- Wheel-stud thread: 5/8-11
- Rotor mounting arrangement: Adapter
- Rotor interface: 8 x 7.00; this is not the wheel bolt circle
- Product-page drawing references (inches): A = 3.320; D = 3.480; H = 2.650; M = 4.600; N = 2.930. Use the manufacturer drawing for the reference faces.
- Manufacturer bearing / race references: Inner Bearing: 370-0431; Outer Bearing: 370-0432; Inner Hub Bearing - Race: 370-0314; Outer Hub Bearing - Race: 370-0315. References identify compatible service parts and do not mean all bearings are included.
- Related assembly part reference(s): 300-11211; check the kit contents and obtain any separately required parts
- Package configuration: One rear hub with bolt-on eight-bolt rotor plate
- Component: Wide 5 - Starlite 55XD
- Position in the specified assembly: Rear
- Material: Aluminum
- Finish: Black E-Coat
- Wheel mounting pattern(s): 5 x 10.25 inches; separate from rotor or drive-flange attachment
Fitment & Compatibility
For the specified Wide 5 racing spindle and wheel assembly. Match the bearing-race arrangement, drive flange or front cap, wheel-stud specification and separate rotor attachment. Use Wilwood’s current hub instructions for fastener selection and torque.
Wilwood component specifications · Manufacturer reference FL261 · Manufacturer reference FL537
Ask PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.
