lower unit swap

crappiehuntr

Recruit
Joined
Apr 13, 2010
Messages
3
I have a 1975 50 hp merc and was wanting to know what lowers would interchange i am wanting to run a 4 blade prop on a jon boat that is tiller. it has a 3 blade 13 pitch now and is way under pitched I cant seem to find any 4 blades for this lower so i was wondering if something with a different prop shaft would work, also the seals are out and the prop i have is junk so now would be the time to replace. I also cant locate any way to tighten the swivel up its not sloppy just loose thanks.
 
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