So i pulled my volvo sx upper unit off of the transom bracket, redid the u-joints, bellows, ect.... Now I got all the new parts I need as well as seals, rings, gaskets and was curious if/what type of lub I should use on them. Do i put anything on all of the o-rings and I've heard different thoughts on the yoke shaft seal that rides the yoke. Some say nothing, some say marine grease. Any info you can give a 1st time assemblier of this drive to help prolong the life of the unit?