Here's the answer! When servicing king pins, this unit is quickly mounted on the front axle...a unique "swinging gate" feature makes setup easy. Both straight and tapered king pins may be serviced. Five special collars and two pins accommodate king pins of 7/8" to 2" in diameter and up to 11 1/4" long. With tooling in position, up to 30 tons of hydraulic force is applied...even the most tightly "frozen" king pin is eased out. A job that could consume the better part of a work day is done in minutes. With the special anchor pin adapter installed in the pusher's base block, and the unit properly positioned over the brake spider, the anchor pin can be quickly and easily pressed out. The unit measures 27 1/2" high x 8 1/2" wide. Made in U.S.A. Includes: King pin and anchor pin pusher with 4002 hydraulic hand pump, 9767 hose, 9798 hose half coupler, 4121 Power Twin 30-ton ram, and anchor pin adapter 29424. Wt., 114lbs.