have a 1972 80hp merc on my boat w/tilt/trim.have opportunity to get real good 1980 70hp merc.1980 70hp has no tilt/trim.is it possible to keep all t/t off old one or do i have to replace some/all.not an outboard mech. and just wondering cost for adding t/t to the 1980 70hp with what i have.is...
