Swapping the CRD liberty engine in a TJ is not an easy swap at all. I am interested in seeing what Mopar performance is going to offer.
The mopar performance kit is going to use the engine from the TJL military jeep series. This is a basic engine without a lot of frill, but still running a bosch CP3 based CRD injection system. It also uses the NV3550 transmission as far as I can tell...so I don't know what they are going to do there?
I have looked at just about every diesel I can find for potential use in a TJ/LJ swap that would look and function like factory. There are not a lot of options. I'm talking about having all the factory guages, cruise, air, etc work like they do in the factory application.
AEV is the only company that I know of that has done this so far. They used the 2.8 CRD, 545 auto, and N242 transfer case in a right hand drive LJ that was built for the owner. There is a good thread on the AEV forum right now about this. Basically you have to rewire most of the jeep and use a 'gateway' module to allow the forward control module to talk ( speed, tach, etc ) with the TJ/LJ guage cluster computer and to provide a speed signal through the CAN-C network for the ECU to allow the cruise control to function. There is a lot more info in that post. Its possible but not easy by any means....
Using a mechanically injected diesel and fooling the factory GAS PCM into providing some guage functions and perhaps cruise control is another option.