I recently purchased a 2022 Ram 1500 laramie with the 5.7 hemi. The truck has the class 4 hitch but no brake controller. I also noticed it has 4 ply tires and 3.21 gear ratio. We are looking at buying a camper to travel with for vacations. The camper Is 28' weighing in around 7500.lbs. I can add the brake controller and put 10 ply tires on and get a WDH. My question is will the 3.21 gears be okay for towing this camper? And is there anything else I should look for before I buy the camper?