Fitment questions?
Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.
Product details
Red six-piston Superlite calipers pair with drilled/slotted 12.88-inch rotors in this Wilwood front conversion. Replacement hubs, bearings and BP-10 pads are included for the documented later GM spindle family. The package requires the correct original upright and the machining described for the bracket installation. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines. Its product range serves motorsport, street-performance, and specialized applications, with individual components selected to match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 140-12280-DR
- Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hub and 1PC Rotor)
- Calipers: Forged Narrow Superlite 6R; 6 pistons per caliper; Red Powder Coat; radial mounting.
- Piston bores: 1.62, 1.12, 1.12 inches; Stainless pistons. Included pad compound: BP-10.
- Rotors: 12.88-inch diameter × 1.10-inch width; SRP Drilled & Slotted; Iron; Black Electro Coat finish.
- Wheel mounting change from OE: +0.30 inches per side; check wheel offset and fender clearance.
- Replacement hubs: Hub - Hat Mount; Aluminum; Bare. Bearings and hub hardware are specified in the installation instructions.
- Wheel bolt circles: 5 x 4.50; 5 x 4.75 inches.
- Included: paired calipers, pads, rotors, brackets and assembly hardware, replacement hubs and bearings.
- Hydraulic flex lines are separate. Master cylinder, booster and spindles are not included; retain or select suitable matching components.
- Conditional minimum wheel diameter: 17 inches. Verify the complete clearance drawing for barrel and spoke offset before purchase.
Fitment & Compatibility
Identify the actual factory disc spindle from the individual application and DS871 before ordering this later-GM package. The original rotor option is a useful check on upright identity, particularly after prior brake work. A qualified machinist must prepare the specified bracket holes and trim the interfering caliper ears before assembly. Inspect bearing fits and the hub mounting faces, then establish rotor and caliper alignment. Allow for the published outward wheel movement when choosing offset and tire width, and verify the hub's five-lug pattern. Hydraulic hoses are additional; test their routing with the steering and suspension at their travel limits. A proposed wheel needs the complete conditional 17-inch profile behind its spokes, not just room for the ring's diameter.
Check the individual year, model, submodel and equipment conditions in the fitment table below before ordering.
Wilwood installation documents: Installation instructions.
PMB Performance has over 20 years of brake-system experience. Contact us with your vehicle, axle or spindle details and wheel measurements for fitment help.
California Proposition 65 warning, brake pads only: 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.
| 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 | |
| 1979, 1981-1985 | Buick | LeSabre | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979 | Buick | Skylark | Disc Brake Spindle | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979, 1981 | Chevrolet | Camaro | Disc Brake Spindle | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979, 1981-1990 | Chevrolet | Caprice | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979, 1981-1985 | Chevrolet | Impala | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979 | Chevrolet | Nova | Disc Brake Spindle | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1979 | Oldsmobile | Custom Cruiser | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Oldsmobile | Delta 88 | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Oldsmobile | Omega | Disc Brake Spindle | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Pontiac | Bonneville | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Pontiac | Catalina | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Pontiac | Firebird | Disc Brake Spindle | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1979 | Pontiac | Phoenix | Disc Brake Spindle | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980 | Buick | Estate Wagon | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980 | Buick | LeSabre | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980 | Chevrolet | Camaro | Disc Brake Spindle | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980 | Chevrolet | Caprice | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980 | Chevrolet | Impala | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 4, 1, 2, 3 | |
| 1980-1985 | Oldsmobile | Custom Cruiser | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1980-1985 | Oldsmobile | Delta 88 | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1980-1981 | Pontiac | Bonneville | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1980-1981 | Pontiac | Catalina | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1980-1981 | Pontiac | Firebird | Disc Brake Spindle | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1980-1982 | Pontiac | Parisienne | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 2, 3 | |
| 1983-1986 | Pontiac | Parisienne | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 | |
| 1984-1985 | Buick | Estate Wagon | Estate Wagon | With OE 11" Rotor Spindles | Disc | Drum | Front Kit | 1, 2, 3 |