Wilwood Rear Starlite 55 One-Ton-Bearing Hub, Black Finish and Drilled Coarse Studs

The one-ton bearing-race arrangement separates this rear Starlite 55 hub from the standard-bearing version. Its black finish and drilled coarse studs must match the required racing specification. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match the complete brake system.

Technical Details

• Manufacturer part number: 270-16772BD
• Wheel-stud thread: 5/8-11
• Rotor mounting arrangement: Direct
• Rotor interface: 8 x 7.00; this is not the wheel bolt circle
• Product-page drawing references (inches): A = 3.570; 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.
• Package configuration: One rear hub with the specified bearing-race arrangement
• Stud configuration: Drilled coarse wheel studs; confirm sanctioning-body rules permit this configuration
• Bearing version: One-ton bearing-race arrangement; this describes the racing hub bearing package, not general truck interchangeability
• Component: Wide 5 - Starlite 55
• 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 FL90 · Manufacturer reference FL537

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