If your excavator's final drive could talk, you'd probably want to listen. There is a moment every excavator owner knows. The machine is working. Everything seems normal. Then you notice something. A strange noise. A little vibration. The machine isn't travelling quite like it used to. One track seems slower. Maybe it pulls to one side. Maybe there's oil where there shouldn't be oil. Maybe the machine struggles on a slope. Maybe the final drive is making a noise that wasn't t