Not too bad with mine towing up to 5K pounds...anything heavier I'd want the 3.55 or 3.73's. I went up one inch in tire height so that doesn't help either. Still get up to 20 mpg hwy at posted limits so that's not bad for a fairly heavy truck. Using the tow haul or manual mode can give you a gear for every occasion with the 6 speed tranny!

Nope no regrets with my Lariat. I do wish I had a locker but I get decent fuel mileage with way more than enough power. To be honest the only differance if you want it in eay terms is the truck with 3:73 gears is only getting a 1/4 more turn of the drive shaft as opposed to the teuck with 3:31.

I have 3.31's and a tuned Ecoboost. I love it although I could feel a slight performance hit and a definite mileage hit when I went to 285/65/18 BFG KO2 tires. They are Load E, so I think that is most of it. I have also moved to Pittsburgh, from relatively flat Georgia and most of my driving is now city as opposed to highway. I was getting 18-19 in Georgia. I am now at about 10-11 in Pittsburgh. Of course some of that, is probably my right foot with the tune. Hahaha.

All of that to say, I don't regret it per say, but I would have looked more at gear ratios when buying the truck if I knew more. This is my first ever truck. I do hope to ultimately put Raptor size tires on my truck and when I do that, I fear I will need 4.10 gears.

Nope, no regrets for my Highway Queen!

I have a 2012 with 3.31s. I have 35x17r17 tires and a level. I tow a 27 foot camp trailer with two slide outs. It does fine, plenty of power. I live in eastern Idaho, so that means lots of hills to climb. I have no regrets.

Nice! I'm planning on getting some 285 /75 /17 bfg mt km2 's
Kinda worried due to my 3.31 gears. That's good to hear.
I assume you ment 35/70 /17's ya?

Nah miss print 35x12.5r17. Toyo at2 on raptor wheels.