Most is obvious except –
1-Take out the prop shaft.
2-Turn the prop shaft gear so teeth are up
and it will slide under the drive shaft gear.
3-You have the slide this spring cover out
of the way (big PITA!!!) to get the pin out
to remove the drive shaft gear & driveshaft.
Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.