Gabriel G64040 Ultra Truck Shock Absorber Precison Engineered for today's light trucks cars with G-Force technology for the ultimate in safety and performance; Gabriel Ultra designed to provide improved comfort and control, long life and durability, and maximum shock performance. Infinitely Variable Damping for on-demand control on all road conditions; StableSteer valving improves tire contact with the road for control, safety and performance, and the G-Force piston provides sintered iron construction for long life and durability Orifice Control Disc for consistent control comfort and stability and an OE-design single lip oil seal that minimizes friction for optimal comfort and performance Super-finished chromed piston rod provides superior corrosion resistance, enhances sealing properties, ensures proper seal lubrication and provides a more consistent wear surface Leak-proof piston seal which extends product life