This kit will allow you to use the full towing capacity of your truck while still riding smooth and load level. Approved Air Line With Fittings And Schrader ValveAir ride tow kitsaka. Load level kits, Tow assist kits, or Tow helper kits are designed to compensate for heavy loads in the rear of your vehicle by using pressurized rubber air springs to level out a "sagging" rear end. Our kits are engineered to be easy to install and increase axle capacity.