Home › Forum › Ask A Member › Can 1955 mark 25 lower drive unit fit 1956 mark 25 › Re: Can 1955 mark 25 lower drive unit fit 1956 mark 25

#33204
Leon
Participant

    Well, larger OMC’s are fully jeweled like the Mercs, so why would they recemend 24:1 for those but yet the Mercs can run 50:1?