2. Engage two mainshaft sliding clutches into gear to prevent transmission from rotating.
4. If previously removed, install the oil seal in drive gear bearing cover of models so equipped.
3. Install the nut on shaft (left hand threads). Using a drive gear nut installer, tighten to 250-300 lbs/ft of torque. Use a punch and maul to peen the nut into the two milled slots of input shaft.
5. Install the drive gear bearing cover and gasket, making sure to align the oil return hole in case. Secure cover on case with retaining capscrews (inset).