The Gabriel 43167 Rear Load Carrier Shock Absorber is engineered to enhance the performance of rear-wheel-drive Ford and Mazda vehicles, including models like the Ford Bronco, F-100, F-150, F-250, F-350, Ranger, and Mazda B-Series trucks. This shock absorber integrates spring assist technology to effectively reduce ride height loss under continuous loaded conditions, thereby maintaining vehicle stability and ride quality during towing and hauling operations. The design features constant-rate front coil springs that improve stability and restore or maintain ride height, while variable-rate rear coil springs provide an additional 500 lbs. of load capacity per pair. The shock absorber is constructed with a leak-proof piston seal to extend product life and a super-finished chromed piston rod that inhibits corrosion and ensures proper seal lubrication. Additionally, the use of Drawn-Over-Mandrel (D.O.M.) tubing reduces internal wear, contributing to longer product life. It's important to note that while the Gabriel 43167 shock absorber enhances load-bearing capabilities, it does not increase the vehicle's payload capacity and should not exceed the vehicle's Gross Vehicle Weight Rating (GVWR).