Just read through your thread, did you regear you '13 when you went to 315s? I ask as I have a '12 with the 5.0 currently stock (same '18-'20 sport wheels as you though) and would like to level/lift and bump to a 285/75r18 or 295/70r18 tires. I have the 3.55 gears and already wish I had 3.73s.
How did your '13 handle that Cherokee Greywolf 26dbh? My truck also only has a 7700lbs tow rating but I'm interested in a travel trailer. Looks like that camper would max out the 7700lbs rating, something i'm not opposed to, i have a suspension build in mind that should greatly improve performance over the stock rating.
I did not regear. I had the 3.55s with locking rear end. It did fine, I didn’t want the truck to be a race car, but it wasn’t a slug either. When I bought the camper I dropped to a 285/75/17. I honestly like that size a lot better as I feel like the 315 is over kill for the gain you get from it.
My camper had a gross weight of 7250 if I remember correctly, loaded for a long weekend for my wife, myself and my daughter I was usually around 6400-6500. It pulled it well, you could definitely tell it was back there in the mountains but on the flatter ground it was fine. The ecoboost is definitely more suited as it builds its power and torque at lower RPM. The best modification I added for the 5.0 was a 5* tune and the roadmaster active suspension when I came to towing. I have since sold the camper as I was able to get a place at the coast which is where we were going most of the time and I prefer tent camping away from camp grounds. I have a 22 foot center console now which is probably around 5,000 lbs give or take but the tongue weight is not nearly as heavy. I have timbrens in the back right now, I would really like another Roadmaster but I can get bags cheaper.
As far as the brush guard with winch tray, you have any pictures and how do you like it? Unfortunately I can’t put a winch on with the ecoboost but I do want a brush guard I think. And 1 inch wheels spacers.