told 70hp jonson lower unit,, from base of waterpump to top of driveshaft is 21 5/8,shift rod w s shaped tip,no screw adj.is 1/2 longer, the driveshaft has round tip w 4 notches on it. waterpump cover 4 bolts ,shiftrod cover 4 bolts waterpump tube ext on top is held in place w 1 flathead,panscrew.the furthes foward to furthestback mounting bolt is 14 3/4. widest fins is 5 3/4 widest mounting surface 4 1/4 mounting face to shaft centeline 10 1/4 on side 5 holes w 1 hole grouped together high up on side.folled behind by a rectanggular thru hole{bolt recess}? 3 holes water inlet 13 splines approx 40" around dia tip n back around. what does it fit n poss year.help plz,
