more info... ...
I bought mine at Herb Chambers in 1999, in Auburn, MA (rt. 20). At the time, there was a mechanic there who came from the diesel world. Seemed to know his stuff about these trucks, the motor, etc... he had owned a couple
I don't know if he's still there, and fortunately, I've never needed any major repairs.
there's also a big diesel/truck place about 1 mile west on rt. 20 from Herb Chambers (I don't know the name). looks like they would be good for engine overhauls, and that sort.
Just more info... . hopefully you don't need it.
Ray