Universal rear weld-on triangulated 4-link suspension kit with two 2500 lb air spring bags and rear air spring bag mounts.Designed for use with most pickup trucks, hot rods, rat rods, or cars featuring a 2.75 inch axle tube.Compatible with various vehicle models including F150, F250, 1948 pickup, 1991 pickup, Sierra, Silverado, Cherokee XJ, CJ-7 4WD, TJ 1997, Ram 1500, 2500, and 3500.Package includes: 4 heavy-duty steel bars 4 zinc-plated steel rod ends with urethane bushings 2 steel weld-on triangulated frame mounts 2 steel weld-on lower axle tube mounts 4 steel weld-on center link axle mounts 2 steel weld-on side frame mounts 8 button head bolts with nyloc nuts 2 weld-on lower axle bag mounts 2 weld-on upper frame bag mounts 2 standard 2500 lb single 1/2 inch NPT port air spring bags 4-link bar dimensions: Tubing outside diameter: 1.25 inches Tubing wall thickness: 0.197 inches Bar length: 24.00 inches Air spring bag specifications: Capacity: 2500 lbs per bag Diameter: 6 inches Extended height: 8 inches Collapsed height: 2.75 inches Two mounting holes approximately 1-3/4 inches from eye to eye One central mounting hole on bottom All mounting holes sized for 3/8-16 UNC fasteners This suspension system is designed to improve handling and ride comfort.Features heavy-duty double convoluted crimped construction.Rod ends are supplied in either silver or black finish, shipped at random based on availability.