the tranny's hold up well to the power. there is a a generic powertrain error code that will pop up when a solenoid goes out thats hard to diagnose. if i had been able to trouble shoot in the drive way, i coulda saved about 700 dollars at the dealership. lesson learned.
the 545rfe only comes in the 4.7L and the 5.7L v8s btw. the v6 engine uses a lower rated tranny, i'd avoid that engine at all costs anyway, its got a bad habit of blowing up.
go with a 5.7L. 100 more hp, same Mpg. and you get a quadra drive II T case. essentially. 3 computer controlled lockers. front, center and rear. Mopar calls it a limited slip, but it goes from full open to full locked. unlike any other vehicle in the market, the reaction time by the computer is so quick, you dont ever realize its locking and unlocking.
i had zero wheel spin this weekend at uwharrie. ive wheeled in everything from open diffs, to limited slips to full locked.
this felt like a full locker that turned off at all the right times.