3.31 gear???

[StaffyBull]

Anyone with the 3.31?

Im wondering what you think? How do they tow?

I don't tow very often so Im thinking of going with the 3.31 gears over the 3.55 plus going with the 3.31 save me like $1300.

I haven't looked it up so I will just ask but is there any tow weight difference from 3.31 to 3.55?

Thanks SB.

[Windturbineguy]

We have touched on this in another thread actually, Lots of different info in there but I dont think anyone with the 3.31 has posted.

[srkr]

Originally Posted by Windturbineguy

We have touched on this in another thread actually, Lots of different info in there but I dont think anyone with the 3.31 has posted.

I ordered and have the 3.31 and LOVE it. The fuel mileage is awsome. Getting 22-24 on the highway. But about 16-18 in the city.

Towing my Airstream with 900 miles on it was around 14. But I believe it will only get better. Sounds more quiet also.

Shane

[Windturbineguy]

Wow, thats pretty impressive. What kind of weight on the airstream?

[StaffyBull]

Originally Posted by srkr

I ordered and have the 3.31 and LOVE it. The fuel mileage is awsome. Getting 22-24 on the highway. But about 16-18 in the city.

Towing my Airstream with 900 miles on it was around 14. But I believe it will only get better. Sounds more quiet also.

Shane

Good info thank you Sir.

What are your truck spec's? Crew cab short bed long bed 250 350?

[jimchris]

I have the 3:31's, I don't tow often but when I do it's around 25K plus. It pulls better than my chipped 5.9 with 3:73's. I also put a 1 inch taller tire on.

[srkr]

F250 Crew Cab Short Bed 4x4 Lariat 6.7 Dual Alternaters,Cab Heater,Moon Roof,Heated/Cooled Seats/Fx4 Package

With a Retrax bed cover.

Weight on Airstream about 7,000 lbs

800lb tounge weight.

[ups 6.0]

I don't think you will have any issues towing with the 3.31 ! This truck have so much low-end tourque to accomidate the 3.31 with no problem.
The different at 70mph.....3.31> 1500 rpm
3.55> 1700 rpm
As you can see the difference is very small ...so I wouldn't sweat it!! 3.31 or 3.55...you'll be happy with it.

[Windturbineguy]

Not to be a smart*** but thats a pretty light trailer. What kind od terrain? Flat or mountains? I am basing it all off of the way I ordered a dodge in 09, went with 3.42's and it killed my MPG when towing 15K+

[srkr]

Well thats why I bought an Airstream, Thats why they call it a AIR-STREAM..Lightweight and cuts through the Air. Plus it will be around in 30 years unlike those fiberglass SOB 5th wheels.

It was a mixture of hills and and straight aways.

In my 2007 6.0 diesel I was getting 11mpg, when I towed my Airstream 2 months ago Over 3,000 miles to the Florida Keys from Texas and back.

So I'm already happy.

Shane