Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Black TC6 six-piston calipers and 16-inch GT rotors equip this eight-lug front conversion. The GM heavy-duty and Hummer H2 applications have distinct year and chassis limits, so confirm the individual listing before matching the retained factory hubs. The manufacturer is Wilwood Engineering, founded by Bill Wood in 1977 and based in Camarillo, California. It designs and manufactures disc brake components and complete systems, from calipers and brake rotors to valves, master cylinders, fittings and brake lines. Motorsport, street-performance and specialized installations each require those components to be matched to the complete brake system.
Technical Details
- Manufacturer part number: 140-8996
- Service calipers: 6-piston TC6; Black Powder Coat; radial mounting
- Brake rotors: 16.00 x 1.38 inches; Iron; GT 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
- Rotor/hat wheel-stud clearance pattern(s): 8 x 6.5 in; 8 x 165.1 mm; the existing hub/axle pattern is retained
- Hat/rotor stud-hole clearance: 0.630 in; 16.00 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: 20-inch wheels may fit; check the complete manufacturer caliper/rotor template
- Quantity: sold as one axle kit
Fitment & Compatibility
Use only with the listed eight-lug GM truck/SUV and Hummer H2 applications. The Silverado/Sierra entries cover selected 1500HD, 2500/2500HD and 3500 trucks through 2010; Suburban 2500 and Yukon XL 2500 entries extend through 2013. Hummer H2 coverage is 2003–2009 and Avalanche 2500 is 2002–2006. Observe the exclusions for four-wheel steering and each individual chassis.
The 16-inch rotor package retains the factory hubs. DS508 requires the hub register and eight-lug pattern to match the hats and adequate bolt engagement after shimming. Separate hoses are specified as 220-8998 for earlier vehicles or 220-10980 for the later connection; verify year, routing and fitting type.
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.
PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.
Vehicle Applications
| Years | Make | Model | Submodel | Model option | Front brakes | Rear brakes | Kit application | Notes |
|---|---|---|---|---|---|---|---|---|
| 1999-2004 | Chevrolet | Silverado 2500 Pickup | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 1999-2004 | Chevrolet | Silverado 2500 Pickup | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 1999-2004 | GMC | Sierra 2500 Pickup | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 1999-2004 | GMC | Sierra 2500 Pickup | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2000 | Chevrolet | Suburban 2500 | 8 Lug - 4 x 4 w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2000 | GMC | Yukon XL 2500 | 8 Lug - 4 x 4 w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2002, 2006 | Chevrolet | Silverado 1500 HD Pickup | 8 Lug - All | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | Chevrolet | Silverado 2500 HD Pickup | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | Chevrolet | Silverado 2500 HD Pickup | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2003 | Chevrolet | Silverado 3500 Pickup | 8 Lug - All | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | Chevrolet | Suburban 2500 | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | Chevrolet | Suburban 2500 | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2002, 2006 | GMC | Sierra 1500 HD Pickup | 8 Lug - All | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | GMC | Sierra 2500 HD Pickup | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | GMC | Sierra 2500 HD Pickup | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2003 | GMC | Sierra 3500 Pickup | 8 Lug - All | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | GMC | Yukon XL 2500 | 8 Lug - All w/ 4.63 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2001-2006 | GMC | Yukon XL 2500 | 8 Lug - All w/ 4.84 Center Register Rear | Disc | Disc | Front Kit | 1, 2 | |
| 2002-2006 | Chevrolet | Avalanche 2500 | 8 Lug - All | Disc | Disc | Front Kit | 1, 2 | |
| 2003, 2005 | Chevrolet | Silverado 1500 HD Pickup | 8 Lug - All w/o 4 wheel steering | Disc | Disc | Front Kit | 1, 2 | |
| 2003, 2005 | GMC | Sierra 1500 HD Pickup | 8 Lug - All w/o 4 wheel steering | Disc | Disc | Front Kit | 1, 2 | |
| 2003-2006 | Hummer | H2 | Base | Base | Disc | Disc | Front Kit | 1, 2 |
| 2004-2006 | Chevrolet | Silverado 3500 Pickup | 8 Lug - All w/ Dual Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2004-2006 | Chevrolet | Silverado 3500 Pickup | 8 Lug - All w/ Single Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2004-2006 | GMC | Sierra 3500 Pickup | 8 Lug - All w/ Dual Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2004-2006 | GMC | Sierra 3500 Pickup | 8 Lug - All w/ Single Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2005-2006 | Hummer | H2 | Adventure | Adventure | Disc | Disc | Front Kit | 1, 2 |
| 2005-2006 | Hummer | H2 | Luxury | Luxury | Disc | Disc | Front Kit | 1, 2 |
| 2007 | Chevrolet | Silverado 2500 HD Pickup | 8 Lug - Classic Style | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | Chevrolet | Silverado 2500 HD Pickup | 8 Lug - New Style | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | Chevrolet | Silverado 3500 Classic | 8 Lug - Classic Style w/ Single Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2007 | Chevrolet | Silverado 3500 Classic | 8 Lug - Classic Style w/ Dual Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2007 | Chevrolet | Silverado 3500 HD Pickup | 8 Lug - New Style w/ Dual Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | Chevrolet | Silverado 3500 HD Pickup | 8 Lug - New Style w/ Single Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007-2011 | Chevrolet | Suburban 2500 | 8 Lug - All | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | GMC | Sierra 2500 HD Pickup | 8 Lug - Classic Style | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | GMC | Sierra 2500 HD Pickup | 8 Lug - New Style | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | GMC | Sierra 3500 Classic | 8 Lug - Classic Style w/ Single Rear Wheel | Disc | Disc | Front Kit | 1, 2 | |
| 2007 | GMC | Sierra 3500 HD Pickup | 8 Lug - New Style w/ Dual Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007 | GMC | Sierra 3500 HD Pickup | 8 Lug - New Style w/ Single Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007-2011 | GMC | Yukon XL 2500 | 8 Lug - All | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2007-2009 | Hummer | H2 | Adventure | Adventure | Disc | Disc | Front Kit | 3, 1, 2 |
| 2007-2009 | Hummer | H2 | Base | Base | Disc | Disc | Front Kit | 3, 1, 2 |
| 2007-2009 | Hummer | H2 | Luxury | Luxury | Disc | Disc | Front Kit | 3, 1, 2 |
| 2007 | Hummer | H2 | Special Edition | Special Edition | Disc | Disc | Front Kit | 3, 1, 2 |
| 2008-2010 | Chevrolet | Silverado 2500 HD Pickup | 8 Lug - All | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2008-2010 | Chevrolet | Silverado 3500 HD Pickup | 8 Lug - All w/ Dual Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2008-2010 | Chevrolet | Silverado 3500 HD Pickup | 8 Lug - All w/ Single Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2008-2010 | GMC | Sierra 2500 HD Pickup | 8 Lug - All | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2008-2010 | GMC | Sierra 3500 HD Pickup | 8 Lug - All w/ Dual Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2008-2010 | GMC | Sierra 3500 HD Pickup | 8 Lug - All w/ Single Rear Wheel | Disc | Disc | Front Kit | 3, 1, 2 | |
| 2012-2013 | Chevrolet | Suburban 2500 | LS | LS | Disc | Disc | Front Kit | 3, 1, 2 |
| 2012-2013 | Chevrolet | Suburban 2500 | LT | LT | Disc | Disc | Front Kit | 3, 1, 2 |
| 2012-2013 | GMC | Yukon XL 2500 | SLE | SLE | Disc | Disc | Front Kit | 3, 1, 2 |
| 2012-2013 | GMC | Yukon XL 2500 | SLT | SLT | Disc | Disc | Front Kit | 3, 1, 2 |
Application Notes
- Line kit included (manufacturer): None
- Front line-kit reference: 220-8998, 220-10980
- 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Front kits use Flexline kit 220-10979