Fitment questions?
Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.
Product details
Extended coarse wheel studs identify this black one-ton-bearing Starlite 55 hub. Wilwood specifies 1.38 inches of additional stud length, requiring a check of the intended wheel, nut and spacer arrangement. Established in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc brake systems. Its master cylinders, calipers, brake rotors, lines, fittings and valves support motorsport, street-performance and specialized applications, with each component selected for its role in the complete brake system.
Technical Details
- Manufacturer part number: 270-16772BLS
- 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: Long coarse studs, 1.38 inches longer than the standard version; verify wheel and nut engagement
- 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
- Wheel-stud thread: 5/8-11
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
Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.
