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Product details
One-ton bearing races are installed in this rear Starlite 55XD variant. The separate rotor plate retains the eight-on-seven rotor interface, while the Wide 5 flange carries coarse wheel studs. From Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and their components. Founded by Bill Wood in 1977, it serves street-performance, motorsport and specialized applications with master cylinders, calipers, brake rotors, valves, fittings and brake lines. All components must suit the requirements of the complete system.
Technical Details
- Manufacturer part number: 270-18422C
- Finish: Black E-Coat
- Wheel mounting pattern(s): 5 x 10.25 inches; separate from rotor or drive-flange attachment
- 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: 370-16724; Outer Bearing: 370-16725; Inner Hub Bearing - Race: 370-16722; Outer Hub Bearing - Race: 370-16723. 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 one-ton bearing races and bolt-on rotor plate
- Bearing version: One-ton bearing-race arrangement; this describes the racing hub bearing package, not general truck interchangeability
- Component: Wide 5 - Starlite 55XD
- Position in the specified assembly: Rear
- Material: Aluminum
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
PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.
