i agree. putting 20's on a stock suspension doesn't look right. either you have to lower it and get low profile tires for the sport truck look. or get at least a 3-6 inch lift and AT tires for the off road look.

i've seen a stock EC Z71 with 20's and low profile tires on a stock suspension,

 

here is a pic of my 20's with stock suspension

 

just look at the new ones that come with 20s you will see how they look

 

small picof one

 

I say do the 20's w/ the 305/55 tire, that looks killer IMO.

 

horse258: How much lift does your truck have?

I'm in the same situation, been considering just raising the front to match the rear and go with bigger tires on the 17's.

 

ive been considering just a bigger tire on my stock 17s cause i like the 17 stock rim , but man ive always had rims on everything ive had but ive never owned a z71 before or a 4wd anything for that matter .

 

got 325/60/20 toyo open country ats on 20" weld dakkars on the hd. ill try to get a pic up

 

3 inch body lift and the front end turned up just a little to level the truck.
but i think a 2 inch kit would clear them.

 

My cousin buys a new truck about Twice a year.
You photos look like the truck in is my yard.
I told my wife that he bought a new truck and
took the photo in our yard. She belived me.