What gears do I need?

[riverst]

I currently have 3:27 open on my ex. ohh, its 4x4 also.
I just installed 20'' rims with a 275/45 tire. Do I need to upgrade the rear/front gears to 3:73 or higher.
If so, what brand? Also I heard i have dana 35 axle up front. Dont know what that means so can you please help.
Thanks

 

[BeauJ]

I had a '92 4x4 with 20's and the same tires. I also had 3.27's. I was rather slow. I'm guessin since you have 20s you're not gonna be offroading? As for the Dana 35, it's an offroad thing you don't need and I don't understand . If you put 3.73's in then it would help you get up and go nicely.