Step up to extreme-duty suspension performance with the Pacbrake ALPHA XD 7500 Rear Air Suspension Kit HP10171-X. Built for truck owners who regularly tow oversized trailers or haul substantial payloads, this heavy-duty air suspension system delivers increased load support and improved vehicle stability. Featuring oversized 7 in double convoluted air springs, the kit helps maintain proper ride height while reducing suspension squat and enhancing overall handling. Premium aluminum end caps and reinforced construction provide lasting durability. Features:• Engineered for frequent heavy towing and hauling• Helps keep the truck level under demanding loads• Large 7 in air springs provide enhanced suspension support• One-piece aluminum end caps increase durability• Reinforced construction stands up to tough working conditions• Designed to improve overall ride control with heavy payloadsSpecs:• Brand: Pacbrake • Part Number: HP10171-X• Compatible Vehicles: 2011-2019 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD 2WD and 4WD• Suspension Type: Rear air suspension kit• Maximum Load Capacity: 7, 500 lbs• Spring Style: 7 in double convoluted air springs• End Cap Material: One-piece aluminumFitment Notes: Fits trucks with or without 5th wheel hitches, does not fit MagneRide equipped models, not compatible with Pacbrake 2 in, 4 in, or 6 in air spring spacers> Oversized 7 in air springs One-piece aluminum end caps 7, 500 lbs load capacity | ALPHA HD Air Suspension Kit for 2020-2026 Silverado/Sierra 2500HD & 3500HD (HP10585)