The Rotary Lift RJ9100Y is the ultimate air-operated scissor-style rolling jack assembly for a drive-on lift. It is perfect for lifting a vehicle for “wheels-free” brake, suspension, and tire service. Equipped with rail engaging wheel assemblies that can be adjusted for an inside runway width of 40 3/4â€³ (1035 mm) minimum to a 49 1/4â€³ (1251 mm) maximum, this runway jack includes two truck adapters, two 3â€³ adapter extensions, and two 5â€³ adapter extensions. It also comes with different-sized rubber pads: 1/2â€³, 1 1/2â€³, and 3â€³ to ensure a secure hold. Additionally, the latch assembly locks at full rise and releases by actuating the lock handle. This jack can handle a weight capacity of up to 9,000 lbs and rolls on four heavy-duty urethane compression wheels. With its sturdy build and versatile features, the Rotary Lift RJ9100Y is a must-have for any car enthusiast or professional mechanic.