The Air Lift LoadLifter 5000 Ultimate is a rear load-leveling helper air spring kit for the 2024-2026 Chevrolet Silverado 2500HD ZR2 and GMC Sierra 2500HD AT4X (4WD). It adds up to 5,000 lbs of leveling capacity with double-bellows air springs adjustable from 5-100 PSI to control squat, trailer sway, and bottoming out when towing or hauling. An internal closed-cell jounce bumper lets the springs run safely at zero PSI, and the included Air Spring Cradles let the springs detach from the lower bracket for full suspension extension off-road. The underframe kit bolts on with no frame drilling and works with most in-bed hitches.
| Type | Rear load-leveling helper air spring kit (LoadLifter 5000 Ultimate) |
| Capacity | Up to 5,000 lbs |
| Pressure Range | 5-100 PSI |
| Air Spring | Double-bellows |
| Jounce Bumper | Internal closed-cell bumper - safe at zero PSI |
| Mounting | Underframe bolt-on - no frame drilling - works with most in-bed hitches |
| Includes | Air Spring Cradles for full suspension extension |
| Warranty | Limited lifetime - 60-day ride satisfaction guarantee |
| Fitment | 2024-2026 Chevrolet Silverado 2500HD ZR2 and GMC Sierra 2500HD AT4X (4WD) |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2024-2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2024-2026 | GMC | Sierra 2500 HD | AT4X |
