Product updated on 2020-08-07, Air lift - AIR:88388, 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., LoadLifter5000 Air Spring Kit by Air Lifts are specifically engineered for hauling or towing heavy loads. LoadLifter 5000 air springs are designed to fit popular vehicles and pickup trucks, motor homes, commercial trucks and other severe uses. Internal jounce bumper prevents damage when driving with an empty air bag Exclusive Air Lift air spring kit Up to 5,000 lbs. of load-leveling capacity Next-Level Air Springs. All the goodies of the LoadLifter 5000 air spring kit with an internal jounce bumper inside - giving you the ultimate in lift, ride comfort, and safety. Internal Jounce Bumper One More Layer of Awesome. Our internal jounce bumper helps to absorb shock, even with zero air pressure. What more could you ask for? Eliminates harsh jarring on rough roads Maintenance-free! Safely run with zero air pressure Replaces factory jounce bumper Provides three-stage ride comfort Up To 5,000 LBS. Of Load Leveling Greatness. Our air springs beef up your existing suspension to boost your safety and comfort when hauling massive loads., Warranty information - We’re with you for the long haul. All air spring kits. Standard limited lifetime air spring warranty — no mileage restriction! Air Lift Company warrants that Air Lift 1000, Air Lift 1000 HD, RideControl, LoadLifter 5000, LoadLifter 5000 Ultimate, LoadLifter 5000 Ultimate Plus, LoadLifter 7500 XL and AirCell air springs systems will be free from defects in workmanship or materials for the lifetime of the vehicle of original installation. This does not include installation or other service charges for replacement.