After removing motor and looking for contact,I couldn"t see anything. I was checking the reverser input shaft for endplay and started turning it over and that is when I felt it. There is something catching at every 360 degree turn. Feels like a tooth missing on a gear. Spinning the input shaft by hand feels good for a bit than it catches and makes a knocking sound. That is what I was hearing when it was running. The noise must have traveled up the shaft into the bell housing. Now I will have to pull the reverser and find the damage. It has never been out before so was wondering if there are any tricks to removing? The lower bolts look to be a real bear to get at. Thanks, Ken