Wilwood front Dynalite kit for GM 11-Inch-Rotor Disc Spindles, black calipers and 12.19-inch srp drilled and slotted rotors laid out
Wilwood black Dynalite caliper and 12.19-inch srp drilled and slotted rotor for GM 11-Inch-Rotor Disc Spindles, assembled front view
Wilwood front Dynalite kit for GM 11-Inch-Rotor Disc Spindles, black calipers and 12.19-inch srp drilled and slotted rotors laid out
Wilwood black Dynalite caliper and 12.19-inch srp drilled and slotted rotor for GM 11-Inch-Rotor Disc Spindles, assembled front view

Wilwood Front Drilled/Slotted Brake & Hub Conversion Kit — GM 11-Inch-Rotor Disc Spindles (1979–1990), Black Dynalite, 12.19-Inch Rotors

SKU: 140-9053-D

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Product details

Drilled/slotted 12.19-inch rotors are supplied with black Dynalite calipers in this GM front conversion. New hubs, bearings and mounting hardware replace the rotating assembly while the factory spindle is modified to accept the kit. 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: 140-9053-D
  • Brake rotors: 12.19 x 0.81 inches; Iron; SRP Drilled & Slotted; vented
  • Included pad compound: BP-10; pistons: stainless steel
  • Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
  • Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
  • Supplied hub wheel pattern(s): 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm
  • Supplied wheel studs: 1/2-20 in
  • Hydraulic hoses: not included; match the separate lines and fittings to the application
  • Included hub package: hubs, bearings, seals, adapters and mounting hardware; original spindles are retained
  • 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 Forged Dynalite Internal; Black Powder Coat; lug mounting

Fitment & Compatibility

This hub kit is for the specified GM factory disc spindles with original 11-inch rotors. The application list includes 1979–1981 Camaro/Firebird, selected 1979 GM compact models, the listed full-size cars and wagons through 1985–1986, and Caprice through 1990. Match each model-year entry and spindle requirement rather than assuming every GM car in this range is covered.

DS504 requires substantial spindle/steering-arm machining, including drilled and tapped bracket holes and removal of interfering ears. Have a qualified machine shop perform the work. Front hoses, including the listed 220-10509 reference, are separate and require vehicle-specific routing checks.

The wheel contact surface must seat fully on the hub. If it overhangs the hub face, Wilwood requires the separate 6.60-inch-diameter x 0.20-inch steel spacer 300-11961. For stamped-steel wheels that do not overhang, Wilwood recommends the 6.15-inch x 0.09-inch hub shield 300-10716. Inspect contact surfaces and follow the wheel maker’s tightening requirements.

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

Manufacturer Resources

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

Years Make Model Submodel Model option Front brakes Rear brakes Kit application Notes
1979, 1981-1983 Buick Estate Wagon With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979, 1981-1985 Buick LeSabre With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979 Buick Skylark Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979, 1981 Chevrolet Camaro Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979, 1981-1990 Chevrolet Caprice With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979, 1981-1985 Chevrolet Impala With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979 Chevrolet Nova Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1979 Oldsmobile Custom Cruiser With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Oldsmobile Delta 88 With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Oldsmobile Omega Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Pontiac Bonneville With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Pontiac Catalina With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Pontiac Firebird Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1979 Pontiac Phoenix Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980 Buick Estate Wagon With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980 Buick LeSabre With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980 Chevrolet Camaro Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980 Chevrolet Caprice With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980 Chevrolet Impala With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 7, 4, 5, 6
1980-1985 Oldsmobile Custom Cruiser With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1980-1985 Oldsmobile Delta 88 With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1980-1981 Pontiac Bonneville With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1980-1981 Pontiac Catalina With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1980-1981 Pontiac Firebird Disc Brake Spindle Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1980-1982 Pontiac Parisienne With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 5, 6
1983-1986 Pontiac Parisienne With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6
1984-1985 Buick Estate Wagon Estate Wagon With OE 11" Rotor Spindles Disc Drum Front Kit 1, 2, 3, 4, 5, 6

Application Notes

  1. Front kits fit 11" rotor spindles only.
  2. Requires modifications to original spindle
  3. Kit may fit some 15" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
  4. This front brake kit contains no parking-brake mechanism. Parking-brake cable selection belongs to the separate rear brake installation.
  5. Line kit included (manufacturer): None
  6. Front line-kit reference: 220-10509
  7. Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.