Manufactured by Pac Brake | HP10340-J | 2019-2024 Silverado / GMC Sierra 1500 Alpha HD Rear Air Overload Kit (with Jounce Bumper), SIERRA/ SILVERADO 1500 (2WD/4WD) FOR ALL TRUCK BED LENGTHS. AT4/Trail Boss - requires use of 2" spacer 10152. Will not fit if vehicle is equipped with Adaptive Ride Control., Eliminate truck sag, sway and bottoming out with ALPHA HD PROTM air bags / air helper springs from Pacbrake, the only brand with inch-thick corrosion resistant end caps and 20 support wires for maximum strength and durability. Designed for durability and performance, the ALPHA HD PROTM Series comes with Jounce Bumpers/Bump Stops, a flexible polyurethane bumper inside the bag that prevents bottoming out, which could damage your air springs, and allows you to run your bags at 0 psi when unloaded for factory ride comfort. Perfect for those that want the peace of mind of having an internal bumper and covet the ride comfort of being able to run without air when not towing. 5,000 lbs of load leveling capacity Product information updated on 2025-03-24. This product can ship by Small Parcel
