airmaxxx Tow Assist Air Over Load Kit w/ Compressor, Gauge & Aluminum Tank – Fits 1999-2007 Silverado/Sierra 1500 Classic

Level Your Load & Tow with Confidence

Haul smarter with the airmaxxx Tow Assist Air Over Load Kit, engineered for 1999–2007 Silverado/Sierra 1500 Classic trucks. This complete rear air spring system eliminates sag and improves handling when towing or hauling, helping you keep your truck stable, level, and safe under heavy loads.

Featuring dual 2500 lb air springs, a lightweight 3-gallon aluminum tank, and an onboard AM400 compressor with gauge and rocker switch, this kit gives you full in-cab control of your rear suspension. Add or release air pressure on demand — just like filling a tire. Installation is bolt-on with USA-made brackets, requiring no drilling or welding.

Key Features

• Up to 5,000 lbs Load Support – Reduces sag, sway, and bottoming out

• Direct Fit for 1999–2007 Silverado/Sierra 1500 Classic
  (stock ride height only; not for lowered trucks)

• Complete Onboard Air System – Compressor, aluminum tank, fittings, and gauge included

• Convenient In-Cab Control – Adjust firmness with rocker switch and air gauge

• Bolt-On Design – Brackets replace factory bump stops; no cutting or welding required

Kit Includes

• (2) airmaxxx 2500 lb air springs

• (1) AM400 pewter air compressor

• (1) 3-gallon 6-port aluminum air tank

• (1) air gauge with rocker switch

• Upper & lower mounting brackets with hardware
  (Made in USA)

• 1/4" DOT-approved air line & fittings

Compatibility

• 1999–2007 Chevy Silverado 1500 Classic
  (2WD & 4WD, stock height only)

• 1999–2007 GMC Sierra 1500 Classic
  (2WD & 4WD, stock height only)

⚠️ Fitment Note – For stock ride height trucks only. Will not fit if rear has been lowered.

⚠️ Load Capacity Note – Provides up to 5,000 lbs leveling support. Never exceed manufacturer’s maximum load rating.