Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range Nitrogen charged monotube design with remote reservoir One piece linear/digressive piston design with vehicle specific valving for unsurpassed performance and ride quality on and off-road 5/8” chrome plated hardened steel shaft resists corrosion and pits 6061 aluminum rod end, top cap, and internals ensure strength and durability