i have a 2001 single cab f150 with a 4.2l v6 standard, currently has 3.55 gears and im running 35's whats yalls input on a good ratio to put in it?
(at 60mph im at 1500-1550rpm)

 

If it were me I wouldnt even bother if I didnt go atleast 4.35 4.10 aint worth the hassle even 4.35 is only a slight difference really. I changed my mustang from 2.90 to 3.79 gears and it made a huge diffence. I also added an overdrive..

 

from what ive found out im between 4.10 and 4.56, but im just not sure which is the best route to go.

 

is the truck 4wd?

 

yes the truck is 4x4

 

4.10's would be 1900 rpm at 60, 4.56's would be 2100 rpm at 60, both with 35's in 5th.

 

60mph at 1900rpm where did that come from? and do you have 456 gears if so do you like them?

 

http://4lo.com/calc/gearratio.php

Nope, stock tires and 3.55's.

Made a boo boo, I just edited my previous post.

 

i would go 4.56

 

ok i see now i was confused but i get it now, i found a place that labor is $225 for front and rear is $250, and 4wheel parts sell ring and pinion for around 215-225 for front or rear, do you know of a better place to buy parts?

 

ok, do you know of a good site to order parts from? and what do you think onwhat glc posted about where the rpms sit at 60mph

 

Those rpm's are fact according to this calculator, they aren't subjective.

 

what i ment by asking him what he thought about the rpms was i need input on is 2100 to high if i do a decent amount of high way driving should i go with 4.10s because rpms are lower i just want to get as much input and help i can i want to gain knowledge

 

What speed do you usually cruise at on the highway?

 

A lot of hills would be the deciding factor. flat lander 4.10, highlander 4.56.