Straight 4640, on what looks like new rear rubber, the numbers still slightly visible on the lugs of the tires. Reman engine from TTP in Pierceton, IN that runs strong. Runs out in all ranges. Has some snappiness to it. Had the following redone in 2010: Engine replaced. Estimated less than 2000 hours on the reman. 2011: Rear End components overhauled. Air could blows cool, a recharge could be in order. Clean tractor.