When mounting your brake controller, locate it in a spot that you can get to it quickly, to activate the manual trailer brakes when needed in an emergency. Also I believe the larger tires will de-rate your maximum pulling capacity. I found that out last week when we purchased our new truck and looked at towing capacities of Rams with 17" tires vs. 20" tires. Go to www.dodge.com
and click on towing. Good luck.