Thought I was stuck until I noticed the axle wasn't perpendicular to the tractor. Just behind the rear axle is a casting that the front axle drive shaft enters the rear of. This casting bolts onto a frame piece that runs parallel to the axle. This frame piece is broken at both ends where it was welded to the long frame pieces. Rewelding this seems like just delaying the next breakdown by not much. The repair weld can't be as good as the factory welds. Has anyone had this trouble? Got any ideas?