As the title says I have a 2006 4x4 super crew and in need of new tires. Now i want to get as big as I can right now with out the level kit because I will be doing a lift later in the year with new tires/wheels. So how big can I get on the stock 20 and get the best tire because these stock pirelli tires are JUNK... thanks

 

running stock with no level, the 275's.

 

You can definetly do a 285/55R/20 BFG AT and you may even be able to do a 305/55R/20 BFG AT tire.
285's=32.5", 305's=33.3".

 

Yeah, you can fit 305/55-20's (33x12.50).

 

If you are going to lioft later in the year, you would need new tires then and any tires you buy now would still be fresh. You ought to wait, try and get by.

 

So I should be able to do a 33 inch tire on stock 20's with no level? does anybody have a pic of this set up? and the reason I dont want to level is I dont feel good about the axel angle after the spacer is put in. I drive my truck every day. also BFG or Nitto??

 

I put Cooper Zenon LTZ 275/60R20 on my 06 Lariat with the 20 inch stocks. Best tire I've ever owned (have had the BFG A/Ts many times). These look better and ride nicer. Have gone through two feet of snow with them no problem.

 

305's