| 1999 | Chevrolet | C2500 | Base | RWD | 5.0L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | Chevrolet | C2500 | Base | RWD | 5.7L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | Chevrolet | C2500 | Base | RWD | 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999 | Chevrolet | C2500 | LS | RWD | 5.0L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | Chevrolet | C2500 | LS | RWD | 5.7L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | Chevrolet | C2500 | LS | RWD | 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1997, 1999–2000 | Chevrolet | C3500 | Base | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1997–1998 | Chevrolet | C3500 | Cheyenne | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | Chevrolet | C3500 | LS | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1997–1998 | Chevrolet | C3500 | Silverado | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999 | GMC | C2500 | Sierra SL | RWD | 5.0L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | GMC | C2500 | Sierra SL / SLE | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999 | GMC | C2500 | Sierra SLT | RWD | 5.0L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1999–2000 | GMC | C2500 | Sierra SLT | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |
| 1997–2000 | GMC | C3500 | Sierra SL / SLE / SLT | RWD | 5.7L / 7.4L | GAS | Crew Cab Pickup | Lowering Rate: R: 4" | E: For increased suspension travel use #6911 C-Notch Frame Kit. |