Re: OMC LU ,identify year and Hp

[frankr]

Hoo boy, good question. You will have to change the drive shaft, for sure. The big question is if the ’81 shaft will fit that older gearcase assy. I don’t know. Along with the stud/bolt issue, you will need the long version of the tube that surrounds the drive shaft. Then, how about the shift rods and water tubes? So many problems. I started to look at the ’81 parts books but found 12 different Evinrude 25hp model numbers, plus the Johnson models.