i got 3.55s on now and wanna get the truck to run like it does stock will that mean i would have to get gears up to like 4.10 /4.56? prices of getting this done a a 2006 4x4? would it kill my gas mileage a whole lot? i dunno any feedback would help i saw a tread almost like this but i think hes running 33s......

daver

 

With 37's, I'd go with 4.56's or 4.88 gears.

 

is that gonna be insane on my truck like gas wise and highway driving will i be doing 65 at 5000rpms? or do they do that at the shop adjusting all that ****?

 

If your truck is at 1900rpm now at 65mph, change to 37" tires and 4.56 gears and you'll be around 2100 rpm at 65mph, not 5000rpm. What size tires do you have now?

 

With the size and weight difference of the 37's, I'd go with 4.88's.

 

I will check again but if I remember correctly i was doing about 2000 rpms and about 75 mph. I can check again on my edge to give you accurate information.

 

How are you going to clear 37s? . . just curious!

Anyways, like everyone said go with 4.56s or 4.88s.

 

4.88 Imo

 

just wondering are u running just a 6inch rancho lift or are u running a body lift to accomidate those 37s?

and wut was the cost to get ur gears done?

 

Hes running the Rancho 4" lift plus the Daystar 2.5" spacers with a bigger block in the rear.

 

OK, took a pic of my EDGE...Doing 70 mph at 2026 RPMs in overdrive with the torque converter locked up.



Yea, runnning a Rancho with daystars up front.

 

oh yea, the gears were $1700 total for front and back, and they are quiet as a mouse

 

thats not bad 2000 rpm at 70 i thought it would be worse then that did u get ur gears done at ford or at a shop? and how mcuh was that tuner ...does the tuner readjust ur speedo back to norm after the tires size change and all?

thx for all the input ...

im putting gears on next week
then fabteck 6" lift the month after
and maybe tires and wheels later on... lol

hard when u have a **** load to pay lol

 

I don't understand the need or the worry for the gear replacements. Besides the shop wanting to sell more stuff, is this really necessary? I have no lack of power in my truck, in fact it's way faster then stock and it's lifted 8" with 35's and if I even got my freekin Toyo's it will have 37x13.5's. There is one difference though, the rims are not 20's they are 17's and they are light wieght forged aluminum. To regain power I added headers, intake, exhaust, real/true dual exhausts with X pipe and a Predator tuner.

 

so ur saying just get her lifted and see after if i needed it truely?