so i have a 87 wellcraft with a 470 merc engine with a se106 outdrive, i replaced the gimbal bearing and now im trying to install the outdrive, i know it is tight, i rotated the prop and the shaft slid into the motor and went on aout another inch but i can get it to the point where the threads on the studs are inside the outdrive holes but then it stops. tried tapping on it with a rubber hammer alittle but didnt wanna budge. oh yea. the 2 grooves on the drive shaft, are those supposed to have o rings in them? or no... is it normal for it to be this tight? any tricks? THANX for any help!!! this forum is a life saver.