on Tue Dec 26 19:34:07 2017, in response to Re: MABSTOA Bus Roster 1/6/74, posted by W.B. on Tue Dec 26 18:03:56 2017.
You're correct. The TA's 6901-6956 (which I failed to include on my last post) and those upper 6100 series were indeed GMC T6H-5310A for express service. Oddly enough in the 6900 group... 6948 was setup up with hard perimeter seating like it's T6H-5309A sisters. I wonder which model designation did it get.