The reason I signed on is because I have a 1986 Case 450 Dozer/crawler. It actually belonged to my dad before he passed away a few years ago. We used it together on our place after doing some logging and brush clearing several years ago. Since then I have used it a few times but it has mostly been sitting a lot. I recently put a new battery in it and changed the fuel filters and fired it up. It still runs great. I no longer have much need for a crawler and would like to find a good used tractor, preferably a JD 4x4 in the 35 to 40 horse range.