Handle big loads with full-time load support. Up to 5000 lbs. of load leveling capacity. For motorhomes and full-size trucks with slide-in campers or towing trailers and 5th wheels. For leaf-spring suspensions, front or rear. Never exceed manufacturer's weight rating. Mfr. one year limited warranty. Fits the following: Trucks, Vans, SUVs:'88-'98 Chevy/GMC C-1500/K-1500 1/2 Ton Pickup Regular & Crew Cab (Not Extended Cab)'88-'00 Chevy/GMC C-2500/K-2500 3/4 Ton Pickup '88-'00 Chevy/GMC C-3500/K-3500 1 Ton Pickup Under 11, 000 GVWR (Except 4" Rear Axle Housing)Specs: Weight: 31.9lb | Air Lift Super Duty Air Springs, Rear - '88-'00 Chevy/GMC Trucks