I have a 2000 4x4 chevy silverado 1500 with stock 265-75-16s. I have the 5.3 liter v8 with the z71 package. I plan on putting 285-75-16 all terrain tires on soon to give it a more aggressive stance. Clearance isn't what im worried about, i've been wondering how much will this affect gas mileage on stock wheels? Some people say none, some people say a lot. Let me know anybody who has done this.

 

I got about 15 mpg, but have never had stock size tires so I don't know what the difference is.

 

I'm not sure of the exact numbers... But you may notice you may have to put your foot in it a little further to get it to move like your accustom to.

Expect a little tire rubbing when your doing tight turns. You may have to invest in a 2" leveling kit.

 

Thanks, Already got the leveling kit, anybody every took off the cat converters on a 2000 silverado off either, i'm not sure if their is any sensors after them

 

My buddy did on his 99 because the cat needed replaced but when they're gone you'll have a code up constantly, I hate having the code especially since it didn't really make a huge difference in sound but it was a good amount louder.

 

Well dang that probably means I have the sensors too, alright thanks man