"Lift Kits by Air Lift. Air Lift Lock-N-Lift Spacers Features - Modular snap and lock design allows you to determine what, if any, angle you need. Available in 2"", 4"" or 6"" lifts. Corrosion-proof - made from stronger-than-steel Zytel. Reduces un-sprung mass compared to steel or fabricated spacers. Works with all brands of air springs. ...