700R4/4L60E Shift Shaft Seal Remover/Installer
GM Transmission Tool
There's no need to remove the shaft from the case to install
a new seal. This tool will remove and install the seal even
if your transmission is still in the vehicle.
Also works on Power Glide, 200, 2004R, 350C, 400, 700R4,
and 92-96 4L60E.