Pacbrake HP10171-J Alpha HD Pro Air Spring Kit for 2011-2019 Silverado/Sierra 2500HD/3500HD

The Pacbrake HP10171-J Alpha HD Pro Air Spring Kit delivers improved load support and ride comfort for 2011-2019 Silverado and Sierra 2500HD/3500HD trucks. Equipped with integrated internal jounce bumpers, this kit helps soften unloaded ride quality while protecting against harsh suspension compression under heavy loads. The heavy-duty air springs reduce rear-end sag, increase stability, and improve overall towing control. Precision laser-cut brackets with corrosion-resistant coating provide long-lasting durability in harsh climates and road conditions. This system is an excellent upgrade for trucks frequently used for towing fifth wheels, goosenecks, or utility trailers.