Olotti76

By decent size I'm thinking like 26-28' around 5500-6000#'s? If so how does it tow? That's the size of tt I'm thinking of going with and I'm looking at used f150's to tow it with and Ive been getting mixed thoughts from you'll be fine to oh no you def need the 3.73. So ive been looking for 3.73's but they are rare birds indeed but I do like the idea of having the extra towing capacity from the 3.73. Of course it's gonna have the tow package and hopefully the power package also. Camping season is coming to an end for me so it's something i.e. The truck that I'll be looking at over the winter time for next year hopefully.

mountaintruck

I have been towing a 6000# (fully loaded) travel trailer this past summer. I also had one other adult and three kids in the truck. And yes, was well within all weight specs.

I am driving a 2016 SCREW, 5.0 with 3.55

We went on three trips, through all sorts of different driving conditions. From easy going secondary highways, to the interstates, and over mountain passes.

Never once was power an issue. You really only want to go so fast with a travel trailer behind you. Sure at the top of mountain passes the turbo engine would have had more in reserve, but I was never slowed by lack of power.

Would the 3.73 be a bit more advantageous, yes, but would not be a deal breaker for me if I was purchasing today. Sure, if you find the right 5.0 and it has the 3.73's go for it.

I would be more concerned by the payload and other weight ratings. Tons on that in the towing thread...

Hope that helps.

chimmike

the 3.73 gears aren't what give the extra tow capacity, as I said in the other thread

Olotti76

Maybe I mis worded it. So all the same being equal in the truck incl all the same packages the 3.55 max tows 7700#'s the 3.73 max tows 9300's. What would u call this if it's not tow capacity. If it's not the axle ratio what gives it this extra 1500# tow.

mass-hole

What year truck are you looking to purchase? If you are looking at a 2018 with the 10 speed then I wouldnt even worry about what rear gear you have. The ratio spread is so large and the gear spacing so close on that new transmission that it basically negates the rear end gear.

If you are looking at a 2017 or earlier then yeah, I might consider a 3.73. Only reason I say that is it will put you in a better position when towing on flat ground by getting the RPM's up a little more and more mechanical advantage.

I've got 3.73's on my tuned ecoboost and it can hold 6th pretty well, but even then a strong head wind can cause me to ride in 5th at highway speeds towing my TT. The tuned ecoboost is making WAY more torque at 2000 rpms than the 5.0.

Olotti76

Anywhere from a 12-14' I'd consider the ecoboost and then put all this to bed but these are the primary years when the eb's were having all their issues at least that's what I've gathered from this forum anyway.

jp360cj

As I said in your other thread, if you're willing to drop back to a 2012 you'll get 3.73s in any FX4 or off-road package truck. Or any Max tow in 2012. IIRC, around 2012/2013, the 3.73s we're about an additional $1k upgrade over the 3.55s. That's why you don't see many outside of the models they were standard on.

mass-hole

I would say you would be pretty safe with a 2014 ecoboost. By then they had kinda worked out most of the kinks but there are some issues still. The farther you go back though, the more cautious I would be. 13-14 also had slightly larger turbos and different blow off vavles.

Olotti76

Like this one

https://www.cargurus.com/Cars/invent...ting=181994080

acdii

My 2014 with 3.15 gears had NO problem towing 6300# up I-75 in Colorado to 11,000 feet. It did not have a tow package so ran hot with a tune, but properly equipped the 2014 Ecoboost is Beast and will have no problems towing. Another advantage of 2014, Production had 99% of the bugs worked out, are are pretty trouble free. The issues they do have are minor and easily corrected.