1978 500 50 hsp merc thunderbolt

kenyp

Recruit
Joined
Aug 24, 2011
Messages
3
Ok ,lets try this again with all the info,(sorry peeps).
I have a 1978 50 hsp merc. I want to know if the lower unit from the 50 hsp would fit on a 90 hsp of the same year?i cant seem to find any schematics online .
Thanks for any help.
 
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