From what I can tell most pickups with diesel engines do not come with exhaust brakes on them, except, I believe, for the latest iteration of the 6.7 Cummins. For those of you who have diesels, do ...
Ragho, We have 2 of those buses and I have driven the other one too and it is the same. But then we seldom do over 50mph and as some would say on flat ground and a lot of county and city streets. I do not know the strategy on how it works with the DT-466 and Allison. Just my observation. JMHO as always. Have a good day. Loved driving thru the high desert in June.