Dropping the gearcase is a pretty simple job once you know how to disconnect the shift rod. Remove the screws that secure the water inlet screens and remove the screens. The shift rod connector will now be exposed. Unscrew the two halves of the connector an slide the top half up the shaft. This will expose the "wedge" which has a slit in it to allow spreading and removal from the shift shaft. After the shift shaft connector is dissassembled it's just a matter of removing the bolts that hold the lower unit to the exhaust housing.