Hi Mainer, just a guess, but you live in Maine? I've got some very good friends up there and will be meeting up with them in mid-February and again in late March. Beautiful land up there.
As for your question I honestly don't have an answer but it might help everyone if you could provide a bit more information. Is that an early Thiokol Trackmaster? What type of engine/transmission is in your unit?
As to what BigAl wrote about the manuals, we do have a pretty extensive collection of manuals for Tucker, Kristi and Snow Trac machines, but we don't have copies for the older Thiokol units. I have a lead on a manual for a Bombardier but won't know for sure about that for another few days. This site seems to work because we all pitch in and share information so if you have anything to share we'd sure like to be able to distribute it.