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  1. M

    81 Evinrude Broken Drive Shaft HELP!!!!!

    Hi Everyone, I recently purchased another lower unit for my motor, an 81 70hp evinrude (btw an 84 lower unit is a perfect fit for an 81) because my drive shaft was broken on the top where the splines are. When I went to put on the new lower unit, I realized that a little piece of the old drive...
  2. M

    Are a 1981 and 1985 Evinrude 70hp lower unit interchangable?

    Hi Everyone, I'm a new member to iboats and this is my first new thread. I just recently bought a "fixer upper" boat, with a 1981 70hp Evinrude outboard motor. While taking off my lower unit to clean everything and make sure everything was in working order, I noticed that my drive shaft (not...
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