Wilwood Rear Black GTB Rotor and Hat, 16.00 x 1.38-inch, 8 x 6.50-inch Clearance

The 2.34-inch hat offset locates this sixteen-inch rear rotor within its matching truck brake kit. Its separate 4.84-inch center-opening dimension must not be mistaken for offset, and the integral drum requires the correct parking-brake components. Wilwood Engineering is based in Camarillo, California and was founded by Bill Wood in 1977. It designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. The range covers calipers, brake rotors, master cylinders, valves, fittings and brake lines, all of which require selection around the full brake system rather than an isolated dimension.

Technical Details

• Manufacturer part number: 160-15384-GTB
• Diameter and thickness: 16.00 inches diameter x 1.38 inches wide
• Ring material: Iron
• Face pattern and coating: GT Slotted; Black electrocoat
• Internal layout: 48 vanes
• Mounting direction: Non-directional
• Balancing and burnishing: Factory burnished no; balanced no
• Hat wheel-stud clearance pattern: 8 x 6.50 inches
• Stud clearance-hole sizes: 0.65 inches
• Center / lug registration: 4.84 inches
• Far-side inside diameter: 11.05 inches
• Hat offset: 2.340 inches
• Internal parking-drum diameter: 8.11 inches
• Inside clearance diameter: 7.99 inches
• Hat mounting-face thickness: 0.31 inches
• Approximate component weight: 43.85 lb
• Quantity: one rotor with integral hat; separate hub, pads, calipers, mounting hardware and any parking-brake mechanism are not included

Fitment & Compatibility

Used by the corresponding sixteen-inch rear truck kit, including 140-15382. Check its eight-on-6.50-inch stud clearances, 4.84-inch center, 2.34-inch hat offset and 8.11-inch parking drum. The axle, parking shoes and caliper hardware are not part of this rotor.

Manufacturer reference: Wilwood rotor specifications, Wilwood application information

PMB Performance can help you identify the matching brake components, drawing on over 20 years of experience. Include the current kit number and mounting measurements when requesting a fitment check.