Fitment questions?
Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.
Product details
A 10.75-inch solid steel rotor keeps this GM front package specific to drag-racing use. This Forged Dynalite front drag hub brake kit combines Type III anodized 4-piston calipers and 10.75-inch drilled rotors. Founded in 1977 by Bill Wood and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems for motorsport, street-performance and specialized applications. Its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to work together as a complete brake system.
Technical Details
- Manufacturer part number: 140-8175-BD.
- Rotor dimensions: 10.75 in; 273.05 mm diameter x 0.35 in; 8.89 mm thick.
- Rotor construction: Steel; solid; Drilled friction surface.
- Calipers: 4 pistons; forged aluminum; stainless steel pistons.
- Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
- Caliper finish: Type III anodized.
- Supplied hub wheel bolt circles: 5 x 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm.
- Included wheel stud thread: 1/2-20.
- Wheel-size guide: 15 in; 381 mm minimum nominal diameter; verify actual template clearance.
- Sold as one kit. Mounting hardware is included. Replacement hubs are included.
- Brake pads are included; use the compound and installation instructions specified for this rotor package.
- Spindles, master cylinder, brake booster and hydraulic brake lines are not included.
Fitment & Compatibility
This drag-racing kit applies only to the listed GM front spindles originally using an 11-inch rotor. The factory spindle requires modification as detailed in DS456. Confirm the exact spindle and complete vehicle brake configuration before ordering. Maximum vehicle weight is 2,800 lb with rear disc brakes or 2,400 lb with rear drum brakes.
The application table below identifies the model-year and factory-equipment combinations. Match the entire row, including its numbered notes.
Package and installation requirements
- Drag-racing package: maximum vehicle weight 2,800 lb with rear discs or 2,400 lb with rear drums.
- Original spindle modifications are required; this is not a general-purpose street conversion.
- The catalog wheel-size guide is 15 inches. Any smaller wheel must be checked against the actual manufacturer clearance diagram; diameter alone does not guarantee fit.
- Wheel contact surfaces must be fully supported by the hub face. Where they overhang it, Wilwood requires its separately sold 6.60-inch-diameter x 0.20-inch steel spacer. For stamped-steel wheels that do not overhang, the instructions recommend the separate 6.15-inch-diameter x 0.09-inch hub shield. Verify the exact wheel with the installation instructions.
- Manufacturer hub offset is +0.31 inch per side. Include this change in the drag car’s wheel-position and clearance checks.
Manufacturer references
PMB Performance brings more than 20 years of brake and parts experience to fitment questions. Send us the axle or spindle details, current brake equipment and intended wheel dimensions if you need help checking this kit.
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.
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
- Front kits fit 11" rotor spindles only.
- Requires modifications to original spindle
- Kit may fit some 14" wheels. Check wheel clearance diagram in kit installation instructions before purchase.
- This kit supplies front service-brake components. No parking-brake mechanism or parking-brake cables are included; verify the vehicle's separate rear parking-brake system.
- Line kit included (manufacturer): None
- Front line-kit reference: 220-10509
- Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.