Strengthen your truckâs hauling performance with confidence using the Pacbrake ALPHA HD Rear Air Suspension HP10171. Built for demanding work and towing conditions, this heavy-duty air helper spring system helps improve ride stability by supporting heavier loads and reducing common suspension issues like sagging, swaying, and bottoming out. Engineered for 2011-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks, this kit delivers dependable support for anyone who regularly carries or pulls heavy equipment. Durable air springs, reinforced components, and a complete installation kit make it a reliable upgrade for enhanced load control. Features:• Provides up to 5, 000 lbs of additional load-leveling support• Helps improve stability when towing or hauling heavy loads• Reduces suspension sag and excessive sway• Heavy-duty air springs feature reinforced construction• Includes corrosion-resistant components for long-term durability• Complete kit supports straightforward installationSpecs:• Product Name: Pacbrake ALPHA HD Rear Air Suspension HP10171• Part Number: HP10171• Compatible Vehicles: 2011-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD• Vehicle Drive Type: 2WD and 4WD• Suspension Type: Rear air helper springs• Maximum Load Capacity: 5, 000 lbs• Spring Style: Double convoluted air springs• Kit Includes: 2 air springs, corrosion-resistant roll plates, powder-coated steel brackets, Grade 5 plated hardware, installation guide• Warranty: Lifetime warranty Fits Silverado and Sierra HD Heavy-duty towing upgrade 5, 000 lbs support capacity | ALPHA HD Rear Air Suspension HP10171, 2011-19 Silverado/Sierra