What Gear's to use?

[Strokin' & Smokin']

I am putting a 12" lift with 40" tires. I need to find out what gears should i get to put the ratio back to stock......thanks

[bigwhite7.3stroker]

I got 10 inches of lift with 22's on 40's and I went with 4.56's which put it back stock and helped the mpg some also

[Raul@Stealth Automotive]

+ 1 more for 4.56

[Landonschert]

I'd say maybe 4:56?

[Landonschert]

thats what i had on 38.5 and lots of power

[Tailboard Jockey]

4.88 for 40's.

[PGreenSVT]

I had 4.56's when I ran 40's in one of my other trucks and it seemed like a good ration to me.

[TANK'S 250]

This is such a loaded question....

First off, you need to take into consideration on the extra rolling mass(larger tires &wheels),....the charts don't figure that stuff in.

second,...
do you drive highway mostly?....
do you offroad alot?....
are you changing it to get better mileage?
are you trying not to work the tranny as hard?
do you tow often?
do you like to race?

it's difficult to answer gear questions,...because another big factor has to be taken into consideration is,...preference,...everyone prefers something different.

I have 41's and 4.56's....but I also have a manual tranny...which also has to be taken into consideration...lol

[Strokin' & Smokin']

Originally Posted by TANK'S 250

This is such a loaded question....

First off, you need to take into consideration on the extra rolling mass(larger tires &wheels),....the charts don't figure that stuff in.

second,...
do you drive highway mostly?.... I drive on the Highway alot yes......
do you offroad alot?.... Yes,I drive off road to work on my land but not for fun.
are you changing it to get better mileage? No but that would be nice
are you trying not to work the tranny as hard? Yes, that would be a plus
do you tow often? Not really, but about 3 time a month.....
do you like to race? Who doesn't, lol

it's difficult to answer gear questions,...because another big factor has to be taken into consideration is,...preference,...everyone prefers something different.

I have 41's and 4.56's....but I also have a manual tranny...which also has to be taken into consideration...lol

The guys at the shop were im doing my lift recommended only going with 4.10's ???? I am thinking 4.56's or 4.88's...... both should be close to the stock ratio i would think but im not an expert so??? Thanks for all the input everyone keep it coming... please

[Raul@Stealth Automotive]

Originally Posted by Strokin' & Smokin'

The guys at the shop were im doing my lift recommended only going with 4.10's ???? I am thinking 4.56's or 4.88's...... both should be close to the stock ratio i would think but im not an expert so??? Thanks for all the input everyone keep it coming... please

i think you should take it to another shop... if those idiots really think 4.10's will be enough for 40" tires they obviously know nothing about gears....