Keep your rig plumb and level without getting out of your cockpit with your Air Lift Load Controller II. When weight's piled on, freight's taken off, or roads become choppy, you can add or vent pressure for the perfect balance of firmness and ride quality. Your Air Lift Load Controller II comes in a single or dual system:. Single Gauge Load Controller II: lets you fill both rear shocks simultaneously for even front-to-rear leveling-ideal for pickups with light trailers, heavy vans and SUVs, and cars with rear coil springs. Dual Gauge Load Controller II: allows either simultaneous front-to-rear leveling or side-to-side adjustments-great for pickups with campers and motorhomes with rear air springs. Air Lift Load Controller II. For the top selection of Air Lift Suspension Systems shop online today. The Air Lift Load Controller II will improve and personalize your vehicle. Air Suspension Kits by Air Lift - selected by many auto enthusiasts in the top automotive discussion forums. Air Lift Load Controller II for your vehicle will deliver the results you are looking for!