Hein-Werner HW93660 10-Ton Long Chassis Service JackHein Werner HW93660 10 Ton Long Chassis Service Jack The Hein Werner HW93660 10 Ton Long Chassis Service Jack is ideal for lifting trucks, trailers and buses by the axle, differential or frame. Handle adjusts to three pumping positions and the long chassis provides accessibility to hard to reach points. Dual piston action provides speed to contact and power to lift. Long chassis makes it easy to access the hard to reach points. The handle adjusts to