2013 T800 cummings/13 speed to a cummings/ultrashift

I briefly looked at swapping the other way Ultrashift to Standard in a 2010 Pete.

Having to swap out wiring harnesses and computers made it not a cost effective choice for me.

 

@Goodysnap

 

Could try this, or at least give these guys a call, they could likely steer you in the right direction if its not something they do. Eaton Autoshift or Ultrashift Plus - Kenworth - NAMUX2/3

 

I swapped an Autoshift (had clutch pedal) to manual in my 01 pete. no swapping or harness or computers required. just removal. and a quick parameter change in the engine ecm

 

Save yourself a lot of headache and get a truck already equipped with an auto.

Anything is possible, but at what cost and how much down time.

 

By the way it's Cummins, not Cummings.

 

As long as you go with an Ultrashift of a similar year. The J1939 data bus speeds have sped up over the years so a newer transmission may not be able to communicate with an older engine.
Within the engine ecu is a parameter to tell it that it’s hooked up to a manual or autoshift so it takes commands from the transmission on when to speed up or slow down during shifts.

 

Very EXPENSIVE to fix if you can find someone who knows anything bout them.