looking to buy 2008 F 350 diesel

[bigrockbruce]

I am considering the purchase of a 2008 F-350 diesel. I currently am towing my 5th wheeler with a 2005 F-350 diesel with the 3.73 gears.
The 2008 models that I have looked at all have 3.55 gears (new gear for these rigs) I would like some input and opinions on wheather it is an important consideration between these 2 ratios. I can't seem to find any specs from Ford or manuals on the 3.55 to help me make a better decision.
The Ford dealer told me that the increased horse power and torque would make up for the higher ratio. He is confident that I would see better gas mileage with the 3.55 and still have plenty of pulling power.
Thanks for all your thoughts,

[richfaa]

Hummm. Try this the Ford Build your own truck site.......http://www50.forddirect.fordvehicles...l=&statetoken=


I see the 4:10 and 3:73 diff being offered. I have the 4:10ls Diff and to tell the truth I would have gone with the 3:73's if I could have found one. We are just short of 10K miles and will do 10/12 mpg towing the 3400 and 15/18 solo both depending on conditions.. The truck full fuel, 2 folks ready to tow weighs in at 9212lbs. The Cummings will get the best MPG..by far..the durimax is about the same as the Ford , so folks who I have met that have the Durimax tell me. I would agree that you will still have plenty of pulling power with the 3:55's .If I was purchasing one now I would probably go that route the price of fuel being what it is. This 6.4L has plenty of pull power.

[FLSTS03]

Hey Bruce, I run 3.73's with my 6.7l Dodge and my mileage rus 10.5/12.5-15.5 tow/solo. The biggest factor i guess is where you will do most of your towing as there dosen't seem to be a lot of difference soloing around town(from friends that have the 4.10s). Steve

[FLSTS03]

By the way, The new 6.7lDodge is way down the mileage list just as Ford and Chevy. Hard to go from a 5.9 displacement to a 6.7 and not expect a little hit on the mileage. Steve