Hey now. Just bought a travel trailer, just a smidge under 8000 lbs grvw, 6400 empty. 1 have a2017 Laramie with the 5.7 and a 3:21 year. I’m not worried about the towing, but my payload is only about 1100 lbs. my tongue weight alone is 710 pounds. I just put in air lift 1000 air bags in my coils. Has anyone else used these? If so how did it work? Thanks!
My trailer is about the same weight. 6500 dry (8400 loaded) and 650 tongue (900 to 1k loaded) . Honestly I think my scale weighs heavy but that's for another thread. We pack light. With that trailer you're going to have close to if not more than 1k tongue. Keep in mind that everything you add to the truck takes away from the payload.
My payload is 1540 and my tow is 10.6k. I bought an Express with the 3.92 rear. I had to deduct the weight of my step bars, bed liner, and class 4 receiver. I added all that. Not to mention my weight distribution hitch head plus me. All that total is about 400 lbs. NOW I'm down to where you're starting at. I usually tow alone and my wife drives separately because I go ahead and we stay local. If she's with me I am over by a little bit.
My point is that you have to add in everything you added to the truck that didn't come factory.
Bags will help with squat (I ordered a set of Tuftruck 1211 springs myself. They should be here next week.) but you will most likely be way over on your tongue weight and probably at or over your tow limit. I just wanted to give you some real world numbers from a similar trailer.
On my truck my Equalizer hitch eliminates the squat. I got the springs to help with the porpoising (bouncing). Nothing to fail, nothing to inflate. I'll post my thoughts about the ride in my own thread when I get them.
