Thanks for any help you can offer! I currently have 275/60/20 BFG rugged terrain tires. I found out it's a passenger tire doesn't do well for towing. I do a lot of highway miles as a contractor that we get off road quite a bit in tow our trailer quite a bit.

I want to upgrade to 275/65/20 Toyo A/T II tires. I would like something a little bit taller for looks and good for towing.
My concern is will it make my truck sluggish at 57 pounds and will the ride be to stiff. I have fox coil overs in the front with the 2 inch lift and airlift company airbags in the back.

Can anyone help me with some comments and facts?

6.5 bed 3.55 rear

 

have a 2011 F150 4x4 screw- 5.0L, 3.55 limited slip. Have 18" wheels on the truck. When the tires wore down enough to justify dumping I put on Yokohama Geolandar A/Ts tires. Not an aggressive tire but a great all terrain. I went up about 1.5 inches taller O/A height. Although I bought P rated tires I tow a 30 foot travel trailer. Had similar tires on my 02 F150. Great characteristics for most driving. Living in the Northwest we mostly deal with rain and black ice with just a bit of snow. Anyway, these are also relatively inexpensive tires to purchase. Last set are still on the truck I sold. My buddy has over 50k miles on em. You can check em out at the Tire Rack. Reviews are middle of the line. They have LT versions as well if your in need or higher load ranges.

 

On my 2005 I went from P 275/60/20 Cooper Zeons to LT 275/65/20 Goodyear Duratracs. I lost a couple of mpgs and the ride was stiffer but not horrible IMO.

I think just about any 275/65/20 will be a LT rated tire and heavier than what you have now. It did do a lot of towing and I can tell you that that is where an LT tire really shines.