Designed to handle the demands of high mileage and severe use vehicles with cab suspensions Shouldered bushing and bonded bushing with sleeve protects from bushing walkout for improved quality arc welds up to 360° for durability 10 Stage valving tuned specifically to each vehicle adjusts to road extremes while larger 1-3/8 in. bore provides more efficient and consistent control most applications Bearing with PTFE coating reduces friction between rod and rod guide combined with nitrocarburized piston rod provides durability and longer service life most applications All weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger 2 in. reserve tube holds more fluid to improve performance when required