lower unit swap

Joined
Aug 5, 2010
Messages
12
i was needing to find out if alower unit from a evinrude 1973 9.5 hp will fit on a johnson 1967 6 hp or is there any difference between the two i tried to put it on but it seemed like it wouldn't fit all the way longer shaft on 9.5? they look the same length or am i wrong or maybe different splines? or was i not lining up right thanks
 
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