I have a cub rtz 50 with 165 hours on it at around 150 hours the left drive stoped pulling or got weak. I went to TSC where it came from and they said no warrenty after 140 hours, go figure. When its could (has,'t been running) it pulls about 80% and as it heats up after 10 - 15 minutes it almost doesn't work. I've checked fluid, its full; and cleaned all around it and believe the disengage lever is right. Anyone have any experiance with this? Is there a trick, can it be repaired or replaced fairly easy?:confused2: