1997 Challenger 55 with 5883 hours. 24" tracks with good tread set up on 120" centers but can be narrowed up to 80" by removing spacers. It has a 3126 Cat engine with an 18 speed powershift. I have a stack of weights for the front that go with the tractor. I also have a leon dozer blade for it I would sell too. Tractor has been used to pull our planter and the drill. We updated to a bigger tractor is the only reason for selling. It has been a good dependable tractor. Call only 785-673-6311