Re: Long shaft 59 50 hp Johnson conversion
You will need a new shaft. no doubt about that at all.
tube can be cut, and there should be an extension for the shift rod. 99% of the time there is. I have seen only one motor than had a longer shift rod.
It really depends on whether the motor came from the factory as a long or short shaft. Factory long shaft motors had 5" longer water tubes, and 5" longer lower shift rod with a standard connector.
However, if it is a motor that came from the factory as a short shaft and has had an extension kit installed, it will have 5" extensions on the water tubes and a 5" longer shift rod connector.
How to tell if it is a factory long or factory short??? Factory long shaft motors have an "L" in the model number. Don't be deceived by a "S" in the model number---that means electric start.