I have a 1981 Cobalt 19cb that was given to me. The motor was removed but have the outdrive it was pre- alpha. Type with the eye hook on top. I'm looking for another mercrusier 260 complete to drop in. If the motor is newer like 1986 what would I have to do to use the outdrive I have or can I use the same transom with newer motor and outdrive if bought together?