These Timbren front GM suspension upgrades help eliminate suspension sag and cushion road shock. They improve roll stability and reduce sway, helping to give you better roll control. Easy to install with basic hand tools, they provide a trouble-free and maintenance-free upgrade to your suspension. The lifetime warranty backs the satisfaction guarantee, so you’ll have peace of mind knowing your suspension is enhanced for heavy cargo or towing trailers. As leaders in rubber spring technology since 1965, Timbren suspension kits use rubber cushions to absorb road shocks while automatically adjusting to uneven loads or road conditions. There are no airlines or fittings to allow leaks, simply bolt them on for a lifetime of trouble-free suspension. Timbren uses computer-assisted design and manufacturing processes to produce quality ride control products.