I’ve had dealerships spout off stuff that they had no clue about before also. I’d say with the mopar lift it would be up to the user on adding a track bar. If you added a spacer along with the lift I’d probably add the track bar.
Size of tires wouldn’t affect track bars. It’s height of lift that makes them necessary. The higher you lift the more your axle will shift to the side.
Another option would be measure front and back at lower pinch seems below doors and see how much lower it is in the front than rear. Since you added bumper and winch it should sit a decent amount lower in front. Maybe lift rear 1in and front the 1” and whatever difference there is to level it. I...
This is mine with mopar 2” lift closer to 3” on a sport with 3/4” spacer up front and stock fenders. 37s and 5.13 gears.
Same setup with metalcloak fenders.
If you decide on no lift I would look into doing a fender chop on your stock fenders or doing aftermarket fenders. You could also look at...
The core arms remind me of the rokmen arms I ran on my Tj. They were really beefy as well. I have always heard good things about metalcloaks arms so figured I would give them a shot this go around.
Mopar lift, 3/4 spacer up front and Currie Antirock.
Metalcloak fenders, control arms and differential covers. Scs K5 wheels with 37/12.5/17 Yokohama geolander x-at tires. Yukon 5.13 gears
Mine was same way out of all places on the Yokohama geolanders. I called around and could not find a 37 anywhere. Finally called the dealership and they had them on special.