i have a 79 mercury 90 hp and i took the motor off the trim and 2 ball bearings came out i know one for sure but i found 1 big one and 1 small one i think the small one goes where the brushes are on the armacher shaft but don't know where the big one goes or if it evem belongs with the trim i hope someone could help me out with where it goes or with a diagram thanks... Bob