On Ebay---1961 Thiokol Trackmaster model 4T10 Snow Cat - 10 pass
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7248256078
Mike, this might make a good parts machine and is located about 200 miles from me. I believe it does have the OC4 that you need. You will need to confirm that info. Might be a little high on starting bid price but you can always make contact and an offer later if it does not sell. If I can be of any assistance if you are interested let me know.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7248256078
Mike, this might make a good parts machine and is located about 200 miles from me. I believe it does have the OC4 that you need. You will need to confirm that info. Might be a little high on starting bid price but you can always make contact and an offer later if it does not sell. If I can be of any assistance if you are interested let me know.