Air Lift LoadLifter 5000 Heavy Half-Ton Adjustable Air Helper Spring Kit For 1999-2007 Chevy Silverado 1500 / GMC Sierra 1500 4WD 2009-2016 Harley Davidson Tri Glide Fill level depends on model

Fill level depends on model year: (About 4

Refer to MGP Caliper Covers website to confirm 100% fitment

Shocks individually tested for matched performance in each corner

The L5P / L5D Stealth 67G2 is the best drop-in turbo ever bolted to the 2017

Air Lift LoadLifter 5000 Heavy Half-Ton Adjustable Air Helper Spring Kit For 1999-2007 Chevy Silverado 1500 / GMC Sierra 1500 4WD 2009-2016 Harley Davidson Tri Glide Fill level depends on modelAir Lift adjustable air helper springs level your load and give a truck, van, or SUV a safer, more comfortable ride. The LoadLifter 5000 installs between the existing leaf springs and the frame add air when you are towing or hauling, drop the pressure back down when you are empty. That takes out the squat, the trailer sway, the poor headlight aim, the body roll, and the bottoming out, and gives back the braking and steering control a loaded vehicle