[JCummings]

Gents,
It is my understanding that I should be able to swap my 2012 express ECU for a 2010 so I may purchase a tuner. Is this correct? Does the ECU also control the trans? What do indeed to do to make sure I don't screw anything up?

 

[HemiLonestar]

I would pay attention to this:
http://www.ramforumz.com/showthread.php?t=108043

 

[JCummings]

Thanks! I sure will