Upgrade your truckâs suspension performance with the PacBrake HP10216 ALPHA HD Air Suspension Kit, engineered to help your Chevrolet Silverado or GMC Sierra handle heavier loads with greater confidence. When towing or carrying cargo, factory suspension systems can become overloaded, causing the rear of the truck to drop and affecting overall driving control. This air helper spring kit adds adjustable support to the rear suspension, helping your truck maintain proper ride height while reducing the strain caused by heavy loads. The adjustable air pressure allows you to fine-tune the support based on your towing or hauling needs, while the durable two-ply rubber air springs and reinforced components provide dependable performance for demanding applications. Features:• Helps maintain a level ride under changing loads• Improves handling when towing or hauling• Reduces rear suspension stress from added weight• Allows adjustable air pressure for load control• Built for long-lasting heavy-duty performanceSpecs:• Brand: PacBrake • Application: 2007-2018 Chevrolet Silverado / GMC Sierra 1500 2WD/4WD• Air spring construction: Double convoluted two-ply rubber• Load support: Adjustable with air pressure changes• Includes: Air springs, mounting hardware, and installation components• Warranty: Manufacturer lifetime warranty Bottoming out Headlight aim off Hitch misalignment | ALPHA HD Air Suspension Kit for SLCT Chevy/ GMC models HP10216