The weak link in a Gen 3 (2003-2006) is the rear diff. 03 are particulary fragile. By 05 Dodge replaced the weakest internal link, but the 03-06 hyrdo-lock is NOT a good rear end product vs 92-02 and 08+ Rear Endurance after 40k miles will be iffy, esp if tracked........
The first few hundred 2003s had motor issues, and specifivc vins needed a valve job. CHECK THE DODGE VIN HISTORY before buying any 2003.
Brakes are fantastic vs your 97. 500+HP is nice, too. HOT COCKPITS vs 97 unless you get an aftermarket exhaust.
10-spoke boat-anchor 03-05 standard wheels with run-craps are a low...........1 OE rear wheel/tire weighs 80 lbs !!!! Belong on a 51 Merc