Challenger Lifts AR44018AR Four Post Alignment Lift Closed TruckChallenger Lifts AR44018AR Medium Duty Four Post Lift 18,000 lbs. Capacity Closed Front with Alignment Truck Lift Package A Superior Car Lifting System Challenger Lifts 18,000 lb. capacity medium duty 4 post lift is great for shops servicing light and medium duty vehicles. The 44018 four post vehicle lift features a superior lifting system with high tensile strength lift chain and sealed roller bearings for maximum reliability. Heavy Duty cylinder