i went with the 285/75-18 BFG's on mine. it has the AS 2" kit

285 is nice because i dont have any rubbing at all, but they dont fill up the wheel well as much as i thought

i should have gotten 305's but oh well next time

 

I would go with 305/55/20 FTW. Wider look for me.

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ford f-250 brush guard

 

camlocker, a leveling kit will not correct the rub of a wide tire so with a 305 on the factory 20's you are going to have a very minor rub at full lock with or without a leveling kit.

 

Go for the best of both worlds. The Toyo A/T comes in a 305/60/20. I wish I could afford it. Up here in Canada it's running at $550. I'm gonna go with the BFG 285/65/20 myself.

 

305's here. I think its a great size for a leveled truck!