Hi guys, new member here. I have a S130 and the left drive seems weak. When I'm getting a bucket load the right side will start spinning but the left doesn't have any power. I switched drives from right to left and still have the same symptoms. Changed both inline hydro filters and main one, still the same. Its a 2004 S130 with 2000 hrs. Any ideas how to diagnose next? I can supply pics, thanks in advance