This handy tool keeps transmission gear lube from exiting the transmission when removing your driveshaft between runs. It has a knurled end for turning the output shaft to realign the clutch. Fits all 32 spline transmissions with 1.886" seal diameter. (Liberty, Jerico, & Richmond manual transmissions.) Will also work as a plug in the Turbo 400 and 4L80 automatic transmissions. Installation - Service instructions can be found on Service Bulletin #0037.