| 2001–2005 | Chevrolet | Silverado 1500 | Base | RWD | 4.3L / 4.8L / 5.3L | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2002–2005 | Chevrolet | Silverado 1500 | Base | RWD | 5.3L FLEX | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2001–2006 | Chevrolet | Silverado 1500 | LS | RWD | 4.3L / 4.8L / 5.3L / 6.0L (2004–2005) | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2001–2005 | Chevrolet | Silverado 1500 | LT | RWD | 4.3L / 4.8L / 5.3L | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2004–206 | Chevrolet | Silverado 1500 | LT | RWD | 6.0L | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2005–2006 | Chevrolet | Silverado 1500 | SS | RWD | 6.0L | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2003–2006 | Chevrolet | Silverado 1500 | WT | RWD | 4.3L / 4.8L / 5.3L | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2002–2005 | GMC | Sierra 1500 | Base | RWD | 4.3L / 4.8L / 5.3L (GAS/FLEX) / 6.0L (2004) | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2001–2003, 2006 | GMC | Sierra 1500 | SL | RWD | 4.3L / 4.8L / 5.3L (GAS/FLEX) | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |
| 2001–2006 | GMC | Sierra 1500 | SLE | RWD | 4.3L / 4.8L / 5.3L (GAS/FLEX) | Extended Cab Pickup | Lowering Rate: R: 6" With 5.25" frame |