Lately I have been hearing an intermittent noise from the right rear area that is getting worse. Its not a grinding sound, more of a ka-thunk every couple of revolutions of the tire. We thought it might have been a bad bearing in the rear but when I pulled off the axle case cover all the bearings spin freely and everything seems to rotate fine. The gears are not missing any teeth and seem to be in good repair. Does anyone have any other ideas?
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