Wilwood Front GM Metric Modified Hub Rotor, 10.50 x 1 Inch, Long Studs

Long 3.14-inch wheel studs distinguish this LS hub rotor for GM Metric Modified racing installations. The 10.50 x 1.00-inch iron rotor includes installed bearing races and a five-on-five-inch stud pattern, while bearing and spindle hardware are selected separately. Disc brake systems have been Wilwood’s focus since Bill Wood founded the company in 1977. Based in Camarillo, California, Wilwood designs and manufactures calipers, rotors, master cylinders, valves, fittings and lines for motorsport, street performance and specialized applications. The rotor is one part of that system and needs compatible pads, calipers and mounting components.

Technical Details

• Manufacturer part number: 160-9239LS
• Quantity: One rotor; not an axle pair
• Outside diameter: 10.50 inches
• Nominal thickness: 1.00 inches
• Rotor material: Iron
• Construction: 32 vanes
• Friction surface: Plain Face
• Finish: Plain
• Approximate weight: 14.90 lb
• Factory burnished: No
• Dynamically balanced: No
• Installation orientation: Non-directional
• Far-side inside diameter: 8.87 inches
• Hub wheel bolt pattern: 5 x 5.00 inches
• Installed wheel studs: 5/8-11 coarse thread, 3.14-inch length
• Installed races: Included; bearing cones and installation kit sold separately
• Intended use and restrictions: GM Metric Modified rotor for dirt and asphalt racing.

One hub and rotor with installed bearing races and long wheel studs. Bearing cones, seal, cap and spindle hardware are supplied separately.

Fitment & Compatibility

For the 1979–1988 GM spindle configuration originally using 10.50-inch rotors, as specified by Wilwood. Confirm bearing kit 370-9537 and the complete Metric Modified racing installation before fitting the hub.

Wilwood product specifications · Rotor dimension diagram

PMB Performance has supported brake projects for more than 20 years. Our team can help identify the correct replacement when your caliper, hat or hub configuration needs a closer look.