The Wilwood AERO4 big brake kit is a bolt on rear upgrade built around forged AERO4 calipers and 14.25in rotors. The SRP rotors are drilled and slotted to vent gas and dust and shed heat under repeated hard stops. Calipers are finished in Red. It ships as a complete kit with calipers, rotors, mounting brackets, brake pads and hardware.
| Type | Big brake kit (truck kit) |
| Caliper | Wilwood AERO4 |
| Position | Rear |
| Rotor Diameter | 14.25in |
| Rotor | SRP drilled & slotted |
| Caliper Finish | Red |
| Part Number | 140-9838-DR |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2005 | Chevrolet | Avalanche 1500 | Base |
| 2005-2006 | Chevrolet | Avalanche 1500 | LS |
| 2005-2006 | Chevrolet | Avalanche 1500 | LT |
| 2002-2003 | Chevrolet | Avalanche 1500 | North Face |
| 2002-2003 | Chevrolet | Avalanche 1500 | On Road Edition |
| 2003 | Chevrolet | Avalanche 1500 | WBH |
| 2004-2006 | Chevrolet | Avalanche 1500 | Z66 |
| 2002-2006 | Chevrolet | Avalanche 1500 | Z71 |
| 2001-2004 | Chevrolet | Silverado 1500 | Base |
| 2004-2006 | Chevrolet | Silverado 1500 | Hybrid |
| 2001-2005 | Chevrolet | Silverado 1500 | LS |
| 2001-2005,2007 | Chevrolet | Silverado 1500 | LT |
| 2007 | Chevrolet | Silverado 1500 | LTZ |
| 2005 | Chevrolet | Silverado 1500 | SS |
| 2002-2004 | Chevrolet | Silverado 1500 | WT |
| 2004 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2000-2001,2006 | Chevrolet | Suburban 1500 | Base |
| 2000-2006 | Chevrolet | Suburban 1500 | LS |
| 2000-2006 | Chevrolet | Suburban 1500 | LT |
| 2004-2006 | Chevrolet | Suburban 1500 | Z71 |
| 2000-2001,2006 | Chevrolet | Tahoe | Base |
| 2000-2006 | Chevrolet | Tahoe | LS |
| 2000-2006 | Chevrolet | Tahoe | LT |
| 2003-2006 | Chevrolet | Tahoe | Z71 |
| 2002-2004 | GMC | Sierra 1500 | Base |
| 2001 | GMC | Sierra 1500 | C3 |
| 2002 | GMC | Sierra 1500 | HT |
| 2005-2006 | GMC | Sierra 1500 | Hybrid |
| 2001-2003 | GMC | Sierra 1500 | SL |
| 2001-2005 | GMC | Sierra 1500 | SLE |
| 2001-2005 | GMC | Sierra 1500 | SLT |
| 2002-2004 | GMC | Sierra 1500 | WT |
| 2001 | GMC | Yukon | Denali |
| 2006 | GMC | Yukon | SL |
| 2000-2006 | GMC | Yukon | SLE |
| 2000-2006 | GMC | Yukon | SLT |
| 2001 | GMC | Yukon XL 1500 | Denali |
| 2006 | GMC | Yukon XL 1500 | SL |
| 2000-2006 | GMC | Yukon XL 1500 | SLE |
| 2000-2006 | GMC | Yukon XL 1500 | SLT |
