Wilwood Rear 12.19-Inch Drilled/Slotted Brake Kit — Black Dynapro DS for Pontiac GTO (2004–2006)

Drilled and slotted rear rotors are paired with black four-piston Dynapro calipers in this GTO kit. The integral rotor/hat arrangement accommodates the factory parking mechanism, avoiding any implication that a new cable-operated parking assembly is included. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Founded by Bill Wood in 1977, the company also produces the individual calipers, brake rotors, master cylinders, valves, fittings and brake lines used in these installations. Selection should account for how each component works within the complete brake system.

Technical Details

• Manufacturer part number: 140-8754-D
• Brake rotors: 12.19 x 0.81 inches; Iron; SRP Drilled & Slotted; vented
• Included pad compound: BP-20; pistons: stainless steel
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.75 in; 5 x 120.65 mm; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.52 in; 13.21 mm; this is not a wheel-stud thread designation
• Parking brake: retain the original internal parking-brake mechanism; no replacement cable kit is supplied
• Hydraulic hoses: not included; match the separate lines and fittings to the application
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 15-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 4-piston Dynapro Dust Seal Radial Mount; Black Powder Coat; radial mounting

Fitment & Compatibility

Fits the listed 2004–2006 Pontiac GTO rear applications while retaining the original internal parking-brake mechanism. The supplied service rotors incorporate the parking-drum interface; existing hubs and parking-brake components must be serviceable.

The stock backing plate/caliper bracket and dust shield require the modifications in DS494. Brake hoses are not included. Wilwood currently lists rear flexlines 220-8756 for 2005–2006 GTO; verify the 2004 hose arrangement before ordering, because the older instruction-sheet hose reference differs.

Check the full application table below, including its model-year splits and brake-configuration requirements.

Manufacturer Resources

• Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Ask PMB Performance to help confirm the configuration before ordering if the vehicle has modified brakes or running gear. We have over 20 years of experience with parts and fitment; a VIN plus the installed component details gives us the best starting point.

Vehicle Applications

Application Notes

1. Kit may fit some 15" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
2. Line kit included (manufacturer): None
3. Rear line-kit reference: 220-8756