I did take the motor apart to add a spacer and went and opened up the reverse unit. 3 of the 4 fingers had holes worn thru and one was flattened probably in an attempt to make better contact. I ordered 2 sets of fingers (one for extra) to replace. I'm anxious to see if adding the spacer will quiet it down, but need to wait for the fingers to arrive at this point.
Thanks!
Rich