Hello all. Ran into a snag rebuilding the old Isuzu 4BD1 in that I don't have an installer and can't find the specs to machine one that will work to proper depth. I believe the tool is stock Kent Moore Tools J-41269 & J-34543-A (Oil Seal Installer & Rear Crank Seal Installer, respectively) but they are not available and an order would not be fulfilled until the new year apparently (at least here in the states). I've managed to locate a used Kent Moore J-34543-A, leaving me tantalizingly close to completing this rebuild, but still short. Does anyone have the dimensions or suggestions for me to pursue to complete?

Thank you in advance.