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HP10340 Pacbrake Alpha HD Rear Air Suspension Kit - GMC Sierra 1500 - 2019-2024

SKU: HP10340
Mftr. Part#: HP10340
Manufacturer: PacBrake
Eliminate truck sag, sway and bottoming out with ALPHA HD air bags / air helper springs from Pacbrake. Don't risk the air leaks and cold weather fractures more common in the plastic end caps of the other guys. Insist on Pacbrake quality, durability and value.

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Have you ever noticed a difference in ride control when driving empty vs. driving fully loaded?

When hauling heavy loads, the rear springs can be pushed to the limit - resulting in excessive bounce, sagging ride height, and an overall feeling of instability.

With the simple addition of a Pacbrake Air Spring / Air Suspension Kit, you can distribute weight evenly to your tires, supporting any load without overtaxing your existing system.

Pacbrake Heavy Duty Double Convoluted Air Spring / Air Suspension Kits are the only air springs (or air helper springs) on the market with one piece aluminium end caps and 20 support wires giving you maximum strength and durability!

Each Pacbrake Double Convoluted Air Spring / Air Suspension Kit is equipped with corrosion resistant roll plates, precision laser cut powder coated steel brackets, grade 5 plated hardware, airline and all accessories required for the perfect bolt on install.

Pacbrake Air Springs come with a Lifetime Warranty. Please refer to the warranty document for more details.


  • 2019-2024 Chevrolet Silverado/GMC Sierra 1500 (2WD/4WD)


  • For all truck bed lengths. Will not fit models equipped with Adaptive Ride Control. AT4/Trail Boss - requires 2" spacer.