6 ply tire for towing

I have a 2017 SR5 double cab and will be towing a 7500 loaded TT. The stock Michelin LTX AT 2's have done great so far and with a Blue Ox weight distribution hitch I have no sway and the trailer does very good on the interstate.
Even though the Michelin's are riding good they are still an SL tire and i would rather errror on the side of caution by buying a stiffer tire. Since the truck is used 90% of the time as a car I really do not want to put 10 ply tires of it and I want to keep my ride. BUT, I have been looking at the Toyo Open Country AT 2 which is a C 6 ply tire and the salesman at the tire shop said that while it isnt a 10 ply that it would stiffen the ride, give me a higher load capacity and be the best of both worlds without sacrificing the ride.

Any suggestions

 

Check the weight capacity on the tires. Keep in mind it is probably at max PSI. Then compare that to your GVW with the hitch weight. I will check my tires I think they are Ds and no problems with 5000 lb boat or 1500 lbs of corn. 6 ply tread. 2835 lbs at 65 psi.

 

The truck is provided with, from the mfg, tires that should accommodate for what the vehicle is rated for....no?

If you want to maintain current ride, fuel economy - why not stick with the SL?

You mentioned everything seemingly tows and ride well, why mess with something that appears to not be broken?

Just my 2 cents

FWIW I'm tire shopping for my wife's Tahoe. It could see our 5500lb boat behind it every once in a while. Tires that will more than likely be installed will be ATs, 3 peak, SL, 115 load.

 

I thought I read somewhere that even P rated tires can handle more load than the capacity of a halfton but I'm certainly no expert.

 

Goodyear all terrain adventure with kevlar, load range C, 275-65-18.

That's what I put on my Tundra for towing. 50 psi max. Gives you stiffer sidewall than P rated tires, 6ply vs 4, ride doesn't suffer.

 

If you go with the 6 ply tires, you could set the psi at one level for normal driving, and air them up when towing the TT. This way the ride might not be so bad when not towing.

 

Yeah that's what I do. Should of mentioned that. 35psi normal and 50 towing.

 

IMO it's still going to ride more rough and fuel economy will still take a hit.

 

True, but it will still be a better ride at 35 psi than at 50.

 

Anything will lol

 

I have the same situation. I live in the mountains on rough roads with miles of descending and ascending switchbacks. Love my LTX Michelin’s but they only last apx 40,000 miles. Last set Michelin gave me $450.0 rebate towards new set. Tires only lasted 11 months. I’m wanting something more stout.

 

In this case, "stout" = rougher ride and decreased fuel economy IMHO.

 

P rated tires will handle more than the trucks capacity. The benefit of higher ply tires is stability with heavy loads. Especially if you're running 18's. Less sidewall flex will keep you from being pushed around as much. I pulled a 21' bass rig with stock P rated tires on a 16 4runner. Air pushed off trucks and 15+ winds would push me all over the lane. Swapped to 6 ply and I'd still get moved some, but it was heck of alot less.
You will notice a slightly stiffer ride but it won't be jarring like E rated tires.

Also like others have said, no matter the tire have a daily pressure and a towing pressure.