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Product details
The six-lug GTB version adds face slots and black electrocoat to the 12.19-inch front rotor configuration. A 1.52-inch hat offset and 1.10-inch working section define its compatibility with the corresponding conversion. For this rotor, the manufacturer is Wilwood Engineering, founded in 1977 by Bill Wood and based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Its motorsport, street-performance and specialized products are selected to satisfy the complete brake system's requirements.
Technical Details
- Manufacturer part number: 160-15782-GTB
- Rotor size: 12.19 inches diameter x 1.10 inches wide
- Rotor material: Iron
- Face and finish: GT Slotted; Black electrocoat
- Vanes: 32 vanes; straight
- Mounting direction: Non-directional
- Factory condition: Factory burnished no; balanced yes
- Hat wheel-stud clearance pattern: 6 x 5.50 inches
- Stud clearance-hole sizes: 0.52 inches
- Center / lug registration: 3.06 inches
- Far-side inside diameter: 8.34 inches
- Hat offset: 1.520 inches
- Inside clearance diameter: 7.11 inches
- Hat mounting-face thickness: 0.25 inches
- Approximate component weight: 18.00 lb
- Quantity: one rotor with integral hat; separate hub, pads, calipers, mounting hardware and any parking-brake mechanism are not included
Fitment & Compatibility
For the matching six-lug front conversion on 1963–1987 Chevrolet C10 with the specified Wilwood ProSpindle, as detailed in DS-1369. Verify spindle-specific ball-joint and tie-rod requirements and the six-on-5.50-inch hub. The rotor's 1.52-inch offset must agree with the caliper brackets.
Manufacturer reference: Wilwood rotor specifications, Installation document DS1369
Contact PMB Performance with the rotor and brake-system details for fitment assistance informed by more than 20 years of experience.
