You don't want the tranny from the SRT10. It's a power eater. Dodge bastardized a diesel tranny in the trucks. I have one of the trucks. I'm doing a big build (strikers, twin screw, nos, headers, etc, etc) and the trans EATS power worse than anything I've ever seen. On top of that, your aftermarket transmissions, which you have to have as the stock one is garbage, are made for diesel applications. We don't make 800lb/tq at 1000rpm's like a diesel. To give you an idea the first converter I started with weighed 80lbs. Yes that's right. I now have a 54lb converter and the new tranny on the way is in the 40's.
There has to be a better solution.