| 2005 | Chevrolet | Silverado 1500 | Base | RWD | 4.3L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 | Chevrolet | Silverado 1500 | Base | RWD | 4.8L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 | Chevrolet | Silverado 1500 | Base | RWD | 5.3L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 - 2006 | Chevrolet | Silverado 1500 | LS | RWD | 4.3L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 - 2006 | Chevrolet | Silverado 1500 | LS | RWD | 4.8L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 - 2006 | Chevrolet | Silverado 1500 | LS | RWD | 5.3L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2005 | Chevrolet | Silverado 1500 | LS | RWD | 6.0L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2006 | Chevrolet | Silverado 1500 | LT | RWD | 4.8L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2006 | Chevrolet | Silverado 1500 | LT | RWD | 5.3L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2006 | Chevrolet | Silverado 1500 | LT | RWD | 6.0L | Standard Cab Pickup | with Front Torsion Bar Suspension | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | Lowering Rate: F: 1" or 2" / R: 4" |
| 2007 | Chevrolet | Silverado 1500 Classic | LS | RWD | 4.3L | Standard Cab Pickup | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | with Front Torsion Bar Suspension | Lowering Rate: F: 1" or 2" / R: 4" |
| 2007 | Chevrolet | Silverado 1500 Classic | LS | RWD | 4.8L | Standard Cab Pickup | Z1: With factory front torsion bars | AX: We recommend using a C‑notch kit for additional travel | with Front Torsion Bar Suspension | Lowering Rate: F: 1" or 2" / R: 4" |
