Re: Johnson Evinrude 9.9/15 lower unit interchange

[DAN ANDERSON]

Looks like BRP may have just obsoleted the earlier design (ME still has some) & moved on to just the one style. Anything to simplify parts availability. They don’t seem to care if it works properly or not! I’m with Don. I would at least try to smooth the sharp edges of the o-ring groove on the older style drive shaft. I would also still put Moly lube on the spline. That will help it get past the groove without damage to the seals. If you look at the new #394327 it has a tag tied to it referencing it to later uses. Hope that helps.

Dan in TN