I have 34" tires on my truck with stock 3.55's. Very sluggish. I am looking at going to 4.10, 4.30, or 4.56. After reading some other post it seems 35" guys like the 3.56.'s. The 4.10's don't seem to make a big difference from what I've read. Has anyone used 4.30's?

Thanks

 

I'm interested in this too since I'll be putting 34's (34.4") on my truck too with stock 3.55's and want to change gears also. thanks

 

What tires are you going with?

 

with 34" i would go with 4.56, it will only put your RPMs 50-100 over what your stock gearing would have been with stock tires from the factory

 

I'm gonna go BFG AT KO's 315/70R17 after some email conversations with a few members here running the same w/o a lift I figure I'll try it, if I don't like it I guess I'll spend a couple hundred on a body lift

 

Thanks for the input!

 

i have 35's and if i could do it again i would get 4.88 instead of my 4.56's

 

Why? Do you drive on the highway much? My only concern is totally killing my gas mileage.