I pull a 20x8.5 enclosed trailer. Empty is around 3300 lbs. With a car in it I get close to the limit. I have pulled my neighbor's JK in it a couple times which is definitely at the limit but still pulls well. The Hemi is rated up to 7200lbs and I think the regular V8 is rated up to 7000lbs with the tow prep package. Your owners manual can verify this info.

There is a factory wiring harness you can add on for wiring the brake controller. It's nice because it's plug and play. I was a little disappointed that this harness was not included in the tow prep package.

The Tekonsha Prodigy P2 is the controller I use - it can be mounted at any angle and even works in reverse!