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Product details
This GT rotor serves the rear disc/drum brake arrangement on compatible six-lug GM 1500 installations. A 14.25-inch slotted friction ring is cast with the hat and an 8.27-inch internal parking-brake drum, preserving the geometry required by the matching rear package. Camarillo, California is home to Wilwood, founded by Bill Wood in 1977. The company designs and manufactures disc brake systems for motorsport, street performance and specialized applications, supplying rotors, calipers, master cylinders, valves, fittings and lines. Matching the rotor to the complete assembly matters as much as selecting its diameter or surface treatment.
Technical Details
- Manufacturer part number: 160-16193-GTB
- Quantity: One rotor; not an axle pair
- Outside diameter: 14.25 inches
- Nominal thickness: 1.25 inches
- Rotor material: Iron
- Construction: 48 vanes
- Friction surface: GT Slotted
- Finish: Black Electro Coat
- Approximate weight: 31.99 lb
- Factory burnished: No
- Dynamically balanced: No
- Installation orientation: Non-directional
- Registration / lug inside diameter: 3.09 inches
- Far-side inside diameter: 10.09 inches
- Rotor offset: 2.220 inches
- Internal parking-brake drum diameter: 8.27 inches
- Internal clearance diameter: 7.56 inches
- Mounting-face thickness: 0.24 inches
- Hat wheel-stud clearance pattern: 6 x 5.50 inches
- Wheel-stud clearance hole diameter: 0.63 inches
- Intended use and restrictions: Rear rotor for matching six-lug GM 1500 brake kits with an internal parking drum.
The integral hat is part of the rotor; caliper, pads, parking-brake mechanism and installation hardware are separate.
Fitment & Compatibility
Confirm the installed Wilwood package, 2.220-inch offset and 3.09-inch register. Six-on-5.50-inch stud clearance alone does not establish compatibility with every GM 1500 model or factory brake size.
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.
