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The Air Lift LoadLifter 7500 XL Ultimate Air Spring Kit (57538) is engineered for serious hauling and towing, delivering up to 7,500 lbs. of load-leveling capacity for heavy-duty GM trucks. Designed for demanding work and trailer applications, this rear air spring kit helps eliminate squat, reduce trailer sway, improve braking performance, and restore factory ride height.
The Ultimate series features an internal jounce bumper, allowing the air springs to be safely run at zero PSI without damage—providing full-time load support and added protection when unloaded. By leveling heavy loads with less air pressure, the LoadLifter 7500 XL delivers improved ride comfort while reducing strain on your factory suspension.
This kit is a bolt-on rear application (no drilling required) and fits single rear wheel (SRW) and dual rear wheel (DRW) models. It is compatible with most side-mount fifth wheel hitch applications, making it a trusted solution for towing and work-duty setups.
Up to 7,500 lbs. of load-leveling capacity*
Reduces squat, trailer sway, bottoming out, and harsh ride
Internal jounce bumper allows safe operation at 0 PSI
Provides full-time suspension support
Levels heavy loads with less air pressure for better ride quality
Improves braking, stability, and ride comfort
Designed for heavy-duty towing and hauling
No drilling required for installation
Rear air spring kit
Compatible with most side-mount fifth wheel hitch applications
Part Number: 57538
Series: LoadLifter 7500 XL Ultimate
Application Type: Rear Kit
Load-Leveling Capacity: Up to 7,500 lbs.*
Replacement Air Spring: 50236
Drilling Required: No
Dimensions & Weight:
Weight: 38.9 lb
Width: 17 in
Depth: 12 in
Height: 10 in
*Load-leveling capacity is based on air spring system capacity and does not increase GVWR.
**Internal jounce bumper allows zero-PSI operation without damage.
Fits the following vehicles:
2011–2019 Chevrolet Silverado 2500 HD
2011–2019 Chevrolet Silverado 3500 HD
2011–2019 GMC Sierra 2500 HD
2011–2019 GMC Sierra 3500 HD
Fitment Notes:
Fits Single Rear Wheel (SRW) and Dual Rear Wheel (DRW) models
Will fit most side-mount fifth wheel hitch applications
Does NOT fit cab & chassis applications
