The Air Lift LoadLifter 5000 Ultimate is a rear load-leveling air spring kit for 2007-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. Its reinforced air springs mount over the factory leaf springs and add up to 5,000 lbs of load-leveling capacity. The internal jounce bumper allows the system to run safely at zero air pressure, and pressure is adjustable from 5 to 100 PSI. Installation requires no drilling into the frame.
Specifications
| Type | LoadLifter 5000 Ultimate rear load-leveling air spring kit |
| Capacity | Up to 5,000 lbs (do not exceed vehicle GVWR) |
| Pressure | 5-100 PSI adjustable |
| Jounce Bumper | Internal; safe at zero pressure |
| Mounting | Over the rear leaf springs; no frame drilling |
| Includes | 2 air springs, brackets, air lines, Schrader valves and hardware |
| Part Number | 78641 |
| Warranty | Limited Lifetime Warranty |
| Fitment | 2007-2018 Chevrolet Silverado 1500 / GMC Sierra 1500 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2018 | Chevrolet | Silverado 1500 | Base |
| 2007-2018 | Chevrolet | Silverado 1500 | Custom |
| 2007-2018 | Chevrolet | Silverado 1500 | High Country |
| 2007-2018 | Chevrolet | Silverado 1500 | LS |
| 2007-2018 | Chevrolet | Silverado 1500 | LT |
| 2007-2018 | Chevrolet | Silverado 1500 | LTZ |
| 2007-2018 | Chevrolet | Silverado 1500 | WT |
| 2007-2018 | GMC | Sierra 1500 | Base |
| 2007-2018 | GMC | Sierra 1500 | Denali |
| 2007-2018 | GMC | Sierra 1500 | SLE |
| 2007-2018 | GMC | Sierra 1500 | SLT |
| 2007-2018 | GMC | Sierra 1500 | WT |
| 2007-2018 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2007-2018 | Chevrolet | Silverado 1500 | Z71 |
| 2007-2018 | Chevrolet | Silverado 1500 | Silverado |
| 2007-2018 | Chevrolet | Silverado 1500 | Midnight Edition |
| 2007-2018 | Chevrolet | Silverado 1500 | Centennial Edition |
| 2007-2018 | Chevrolet | Silverado 1500 | Special Edition |
| 2007-2018 | GMC | Sierra 1500 | SLE1 |
| 2007-2018 | GMC | Sierra 1500 | SLE2 |
| 2007-2018 | GMC | Sierra 1500 | Elevation |
| 2007-2018 | GMC | Sierra 1500 | All Terrain |
| 2007-2018 | GMC | Sierra 1500 | AT4 |
| 2007-2018 | GMC | Sierra 1500 | Carbon Edition |
| 2007-2018 | GMC | Sierra 1500 | X31 |
| 2007-2018 | GMC | Sierra 1500 | Sierra |
| 2007-2018 | Chevrolet | Silverado 1500 | Fleet |
| 2007-2018 | GMC | Sierra 1500 | Limited |
| 2007-2018 | Chevrolet | Silverado 1500 | Limited |
| 2007-2018 | Chevrolet | Silverado 1500 | Regular Cab |
| 2007-2018 | Chevrolet | Silverado 1500 | Extended Cab |
| 2007-2018 | Chevrolet | Silverado 1500 | Crew Cab |
| 2007-2018 | GMC | Sierra 1500 | Regular Cab |
| 2007-2018 | GMC | Sierra 1500 | Extended Cab |
| 2007-2018 | GMC | Sierra 1500 | Crew Cab |
| 2007-2018 | Chevrolet | Silverado 1500 | Hybrid |
| 2007-2018 | GMC | Sierra 1500 | Hybrid |
| 2007-2018 | Chevrolet | Silverado 1500 | XFE |
| 2007-2018 | Chevrolet | Silverado 1500 | 4WD |
| 2007-2018 | GMC | Sierra 1500 | 4WD |
| 2007-2018 | Chevrolet | Silverado 1500 | 2WD |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
