gears vs. tire size

[towbeast03]

I have an 03 f250 with 37 inch toyo m/t's, I tow a 28 ft nrg trailer and was wondering how to figure out which gear to use to get the truck back to tow like it would stock, or at least close. if I can, I want to go to 38's because I think the truck would have a better stance. now should I do a 4.10 or 4.56 or what? is there some kind of chart to go by or just preference and instinct or what. any info would be great thanks fellas...

[holleywood]

4Lo.com :: Gear Ratio & Tire Size Chart

take a look to see if thats what you were looking for

[Raul@Stealth Automotive]

if you tow i would get 4.56 im running 37 but hardly ever tow(only when a chevy breaks in the dunes) and ill be putting on 4.30

[LvTitan]

Originally Posted by Raul@Stealth Automotive

if you tow i would get 4.56 im running 37 but hardly ever tow(only when a chevy breaks in the dunes) and ill be putting on 4.30

that is a good answer.
i agree.

i recommend 4.56 whenever you are going to do 40" or bigger, but since you are going to be towing, i would do the 4.56 and you'd still be good with 38" when you upgrade.
the 4.30 are good for 37-38 no problem if you dont plan on towing a lot.

[towbeast03]

yeah I also heard 4.56 was the way to go for towing thanks fellas I apprieciate the help. that chart was very useful also.

[defjef]

I have 2 tires that are going bad and cant afford a new set right now. They are 235/85 r 16 . Can I throw a set of 265/75 r 16 on just to get me by for now? Using the same rim from original tires.

[najaf4life]

well i have 4.56's.... don't really tow to much at all... but it is alot of fun with them.... I can grab second and turn those 37's pretty easy..

[LvTitan]

my buddy has 44's on his truck, and he can smoke them at will with his 4.56 gears.
his truck was programmed by RBP

[HVAC SuperTech]

Originally Posted by defjef

I have 2 tires that are going bad and cant afford a new set right now. They are 235/85 r 16 . Can I throw a set of 265/75 r 16 on just to get me by for now? Using the same rim from original tires.

yes, they basically are the same tire size, whithin a couple of tenths.