Gabriel 43171 Rear Load Carrier The Front and Rear Spring Assist (Load Carrier) by Gabriel combines shock and spring technology to reduce the loss of ride height in ongoing loaded conditions. The constant-rate front coils springs can help improve stability and restore or maintain ride height, while the variable-rate rear coil springs provide 500 lbs. per pair of extra load capacity. (Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload.) All Gabriel shocks and struts feature a super-finished chromed piston rod thatprovides superior corrsion resistance for longer life. View larger Gabriel Front and Rear Spring Assists are useful for a variety of applications: Combines shock and spring technology Constant-rate front coil springs can help improve stability and restore or maintain ride height Variable-rate rear coil springs provide 500 lbs. per pair of extra load capacity (Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload.) An economical solution for heavier duty use And like all Gabriel shocks and struts, Gabriel Front and Rear Spring Assists feature: A super-finished chromed piston rod to inhibit corrosion, ensure proper seal lubrication, provide a more consistent wear surface A leak-proof piston seal which extends product life D.O.M. (Drawn-Over-Mandrel) Tubing that reduces internal wear for longer product life About Gabriel Starting in 1907, Gabriel invented the original shock absorber, followed by the first hydraulic shock absorber, the first adjustable shock absorber and the first air adjustable shock absorber. And today, it's still that same innovative, independent American company--building high-performance shocks and struts that cover over 96% of North American vehicles. Gabriel continues adding new product coverage, including expanding their line of ReadyMount strut assemblies, which make installation faster, safer and easier. And Gabriel continues that independent spirit, working hard to deliver innovative new products and services, every day.