Maybe a liar?
http://lansing.craigslist.org/cto/5345217601.html so I contacted this person and this is what I got.
245 hp 5.9 ISB Cummins Turbo Diesel
-Mechanical MT643 Allison Automatic Transmission (4th gear 1:1 ratio)
-4.44 rear axle ratio
-100 gallon fuel tank
The tag they sent me had a at545 for the tranny tho. This is within an hour and a half drive time. I plan on investing in a good bus and was seeing if I could get any advice on the discrepancy between their info and mine. Code on pic said 3211076548 which cones up as 545