If it's got a 42 inch freedom deck, pasadena. The deck has a timing belt and is prone to break at least once a year. When it does, the blades have a uncanny way of smashing each other. The noise and damage is horrific. I owned a LT160 and LT170.

They are a nice tractor in many ways. Kdougs advice on the freedom may be a bit hasty, though most of these didn't have freedoms. (no discharge chute on this model) These decks work extremely well in an environment that is a bit more civilized where you're not mowing rocks. Grab a rock, chances are about 40 % you get to buy a timing belt and blades. Take the tractor for a test drive. You want to know if the deck runs smooth at all speeds and does the transmission work and sound well? How do the belts and blades look etc. The Kohler engine is dependable on these.