Product information updated on 2020-03-07, Manufactured by Air lift - Part Number AIR:59103, SlamAir rear overload system, fits 88-13 GM 1500, 73-03 F150 and 69-01 Ram 1500 with 2 to 4 inch rear drop, SlamAir Adjustable Air Springs for Lowered Trucks (Lowered 2-4 in.) Application Type: Rear Kit , SlamAir fits most lowered trucks with a 2, 4, or 6 inch drop, including trucks with flipped axles and notched frames. Each kit includes everything you need to install the system, and our end caps are made of an ultra high-strength nylon composite which is Warranty information - We’re with you for the long haul. All air spring kits. Standard limited lifetime air spring warranty — no mileage restriction! Air Lift Company warrants that Air Lift 1000, Air Lift 1000 HD, RideControl, LoadLifter 5000, LoadLifter 5000 Ultimate, LoadLifter 5000 Ultimate Plus, LoadLifter 7500 XL and AirCell air springs systems will be free from defects in workmanship or materials for the lifetime of the vehicle of original installation. This does not include installation or other service charges for replacement.