Well, in a nutshell the auto trans on my '06 Rubicon seems to suck the life out of my engine. I've had other 4.0's all with manual transmissions and they felt way more powerful in everyday driving. Is there anything i can to to change this other than buying a stick? Any kind of mod to get a bit more power to the ground? I have looked into some shift kits, but am a little worried about digging far into the trans itself since it's still under the factory warranty. I love the auto in most situations off road, but on road it's killing me