The Gabriel G63888 Rear Ultra Truck Shock Absorber is engineered to enhance the suspension performance of 2005-2016 Ford F-250 and F-350 Super Duty models. Designed with Gabriel's exclusive G-Force„¢ technology, this shock absorber offers quicker response times, extended product life, and consistent, reliable ride control. The StableSteer„¢ valving improves tire contact with the road, enhancing control, safety, and performance. A 1 3/8-inch bore piston with bonded iron construction ensures durability and longevity. The leak-proof piston seal and rod guide eliminate oil bypass, while the super-finished chromed piston rod provides superior corrosion resistance and enhances sealing properties. Infinitely variable damping offers on-demand control across all road conditions, and the orifice control disk with variable nine-stage valving ensures consistent oil flow. The OE-design single-lip oil seal minimizes friction for optimal sealing. With an extended length of 31.36 inches, a collapsed length of 18.67 inches, and a stroke length of 12.69 inches, the G63888 is tailored for specific vehicle applications. This shock absorber is sold individually and is backed by Gabriel's Limited Lifetime Warranty, covering defects in workmanship or material.