I am looking to replace my lower unit on Johnson V4 88hp 1990 year. What year range of units and HP will fit? Also will different HP and different year make a difference in performance or durability.
I have a Johnson SPL88 V4 on a pontoon boat. Just recently docked for season 2 weeks ago. When driving down river boat runs fine then all of a sudden I get a thump or clunk/bang sound that shakes whole boat like I hit a log or something. If I back of throttle to slow speed it does not seem to do...
