Thanks for the reply Jerry! My terminology may be off for sure! I'm not really an S scale guy... You are correct... the little cups are cracked. I just didn't know what to call them! HAHA. I have not checked the gears yet, but I will. The units are off site right now, but will do more investigation Tuesday at our club meeting. What leads me to believe it was the U joint cups is the obvious damage and the fact it only makes the noise in one direction... hence I thought the U joints were holding on the uncracked side, but were slipping or something on the cracked side. At a buck a pop for those gears, we should probably just add that to his order. Even if they are fine, it never hurts to have spares in the tool box.
Where in MI is American Models?
