Air Lift LoadLifter 5000 Ultimate Kit
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2019+ Silverado TrailBoss and Sierra AT4 1500 AirLift Load Lifter 5000 Ultimate Series Up to 5,000 lbs. of load-leveling capacity, Eliminates squat, trailer sway, rough ride and bottoming out. All the benefits of the LoadLifter 5000 series with the addition of an internal bumpstop in the bags so you can safely operate with no air pressure.