Abstract: Apparatus for determining end-play in a torque converter without draining oil from the torque converter and also useful for measuring end-play of same unit at salvage yards. The apparatus comprises a spring operated plunger slidably arranged in a tubular casing; locking pins slidably attached to the casing; a pair of plunger operating handles to initiate motion of the plunger; a central rod inside the plunger extending through the pair of handles; and a measuring gauge having a central pin slidably extending in the direction of the central so that an upward movement of the central rod representing the end-play in the torque converter causes to push the pin upward which provides a reading on the gauge.