Hey guys I need a little help. Was bush hogging today and hit a large rock that almost stopped the tractor. I could smell what seemed to be a metal and oil smell together which only lasted a minute. I disengaged the PTO and waited a minute. I then reengaged the PTO and continued to mow for about 10 minutes. Then when pulling up a grade the tractor started to shake and loose power. I disengaged the PTO again and the tractor still shook. I stopped the tractor waited another minute and restarted it. No more shaking but hardly any power at all in low gear. High gear still seems normal. Tractor is a B2400 HST 4x4 with power steering. Also has a FEL which still seems to operate correctly. Any ideas or suggestions would be greatly appreciated.