New member looking for input on my 78 inboard

[deepsushi]

Here are some other possible items to check replace since you have the engine out and deck off and have easy access. Trying to replace these items with the motor and deck in place are probably impossible due to the cramped bilge of the inboard

Check / replace the shaft log hose
repack shaft / rudder
service / grease seacock
replace raw water hose
check / replace cutless bearing