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Product details
The 14-inch GT rotor pair defines the wheel envelope for this black Superlite front conversion. Its BP-20-equipped six-piston calipers serve the qualified GM hub applications, with the OE-wheel spacer requirement checked before ordering. Wilwood Engineering’s disc brake systems and components serve motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California. Wilwood designs and manufactures brake rotors and calipers as well as master cylinders, valves, brake lines and fittings. Selecting compatible components is essential to the complete system.
Technical Details
- Manufacturer part number: 140-8922
- Service calipers: 6-piston Forged Narrow Superlite 6R; Black Powder Coat; radial mounting
- Brake rotors: 14.00 x 1.25 inches; Spec-37 Iron; GT 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 4.5 in; 5 x 114.3 mm; 5 x 4.75 in; 5 x 120.65 mm; the existing hub/axle pattern is retained
- Hat/rotor stud-hole clearance: 0.520 in; 13.21 mm; this is not a wheel-stud thread designation
- 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: 18-inch wheels may fit; check the complete manufacturer caliper/rotor template
- Quantity: sold as one axle kit
Fitment & Compatibility
For 1997–2013 Chevrolet Corvette C5/C6 and 2004–2009 Cadillac XLR applications as listed. The classic 1962–1982 GM entries require the specified Ridetech hub spindles; they are not approvals for those vehicles’ original spindles. Match the exact Corvette/XLR brake package or the installed aftermarket spindle before purchase.
This 14-inch package requires the larger wheel envelope shown in DS503. The application notes specify 3/16-inch spacers with OE front wheels; check wheel seating, stud engagement and the exact wheel template. Order the hydraulic hose arrangement for the actual chassis separately.
Use the fitment table below to confirm the exact model, year, trim and all numbered application notes.
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.
With over 20 years of parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.
Vehicle Applications
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 1962-1967 | Chevrolet | Chevy II | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1963-1964 | Chevrolet | Corvette | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Buick | Skylark | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1969 | Buick | Special | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Buick | Sportwagon | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Chevrolet | Chevelle | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Chevrolet | El Camino | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1971 | Oldsmobile | 442 | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Oldsmobile | Cutlass | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Oldsmobile | F85 | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Oldsmobile | Vista Cruiser | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1969 | Pontiac | Beaumont | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Pontiac | GTO | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1972 | Pontiac | LeMans | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1964-1970 | Pontiac | Tempest | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1965-1967 | Buick | Gran Sport | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1965-1982 | Chevrolet | Corvette | w/ Ridetech Hub Spindle | Drop | Disc | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1967-1969 | Chevrolet | Camaro | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1967-1972 | Oldsmobile | Cutlass Supreme | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1967-1969 | Pontiac | Firebird | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1968-1969 | Buick | GS 350 | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1968-1969 | Buick | GS 400 | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1969-1974 | Chevrolet | Nova | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1970-1972 | Buick | GS | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1970-1972 | Buick | GS 455 | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1971-1972 | GMC | Sprint | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1971-1974 | Pontiac | Ventura | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1973-1974 | Buick | Apollo | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1973-1974 | Oldsmobile | Omega | w/ Ridetech Hub Spindle | Drop | Drum | Front Kit | 1, 2, 3, 4, 5, 6 | |
| 1997-2004 | Chevrolet | Corvette | C-5 & Z06 | Disc | Disc | Front Kit | 1, 2, 5, 6 | |
| 2004-2009 | Cadillac | XLR | All | Disc | Disc | Front Kit | 1, 2, 5, 6 | |
| 2005-2008 | Chevrolet | Corvette | Base | C-6 - Base | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2006-2008 | Chevrolet | Corvette | Z06 | C-6 - Z06 | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2009-2013 | Chevrolet | Corvette | Base | Base | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2009-2013 | Chevrolet | Corvette | Z06 | Z06 | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2009-2013 | Chevrolet | Corvette | ZR1 | ZR1 | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2010-2013 | Chevrolet | Corvette | Grand Sport | Grand Sport | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2011 | Chevrolet | Corvette | Z06 Carbon | Z06 Carbon | Disc | Disc | Front Kit | 1, 2, 5, 6 |
| 2013 | Chevrolet | Corvette | 427 | 427 | Disc | Disc | Front Kit | 1, 2, 5, 6 |
Application Notes
- 14" Rotor
- Kit will require aftermarket wheel spacers of 3/16" (not included in kit) for front kit installation with OE wheels.
- Universal Flexline kits available: 220-7056 (14"), 220-7699 (16") or 220-8307 (18"). Choose correct length for your application.
- This front brake kit contains no parking-brake mechanism. Parking-brake cable selection belongs to the separate rear brake installation.
- Line kit included (manufacturer): None
- Front line-kit reference: 220-8176, 220-9100, , , 220-12168