The Gabriel Ultra Strut is precision-engineered for safety and performance, and it comes equipped with G-Force technology for quicker response, improved product life, and consistent, reliable ride and control. Stable Steer valving provides response from all four corners, and the G-Force piston is bonded iron construction for durability and longer life. By providing a positive seal between the piston and working cylinder, the nitrile leak-proof O-ring piston seal eliminates oil bypass. The orifice disk with variable nine-stage valving provides consistent oil flow while the heavy duty compression head valve withstands extreme impact, greatly reducing internal component failure. Preventing oil blow-by between piston rod and piston, improving operational consistency, is the nitrile rod guide O-ring. Internal nitrogen gas pressure optimizes the relationship between product component and gas pressure, reducing fade and improving vehicle control.