Basically the Allison behind the duraturd is a Allison shell with "GM" parts inside. (I know the association, read between the lines.)

 

can you put it up to a trans case? Gm?

 

speaking of salvage yards...wha kinda trannies can i score from there that would work on my cummins?? my friend owns it so i can get whatever what bigger rigs or buses should i scope? anyone ever give this any thought?

 

For Manuals, try looking for an FL60 -FL80 Freightliner Business Class with the 6 speed Spicer.

 

yeah sigh im stuck with an auto no problems to date but still....iwish we could just throw in a different fluid that woul drastically lower the stall on the stock autos