Gearing

[v210r1]

I have a 2005 Excursion 6.0 with a 7 inch SuperLift and 37x13.5x22 tires. The stock gearing is 3.73 what gearing should I change too. The tires are Toyo Oper Country they mesure 36 inches. Thank You!!!

[MrJohnWayne]

4.56 would be your best bet.

[BigGreen06]

For 37s the correct gearing would be 4.88s, but that'll kill your mpg, if you're worried about that. You could get away w/ 4.56s but thats the highest I'd stop at, 4.10s you'll really be sacrificing power.
Here's a link on gear ratios: 4Lo.com :: Gear Ratio & Tire Size Chart

-BG06.

[v210r1]

Thanks Guys

[Marty]

4.30 for sure unless you tow very often, then 4.56's.

[v210r1]

I was told 4.30 before but you don't see alot of people with then. I tow a little. I have a 21 foot toy hauler.

[Marty]

How heavy is the toy hauler?

Actually, it's yours... you will probably upsize in the future anyway, 4.30's will pull most anything within the range an excursion can legally, but the 4.56's will do it a bit easier.

[v210r1]

Total 10000 lbs, I can't fit anything bigger at my home. It perfect size for my family of 4. But you never know you can always upgrade!!!!!

[lilredpowerstroke]

Either 4.30's or 4.56's. 4.10's will be too high and 4.88's will be too low. I'm running 4.56's in my truck but am running 39.5's and dont feel like I have enough low end. If I had the truck I would put 4.56's with 36's.

[Rob]

ive been thinking about regearing my truck also. what is the approximate cost to do this on the front and rear ends? anyone know??