what size tire can i fit on stock 20"s 2011

[6.4powerstrke]

just got a 2011 f250 gas motor with the factory 20" wheels wondering whats the biggest tire i can put on these wheels with out any rubbing and still looking good not to big. The truck is completely stock no lift no leveling kit.

[CT Performance, Inc.]

35" easyly..some even use 37" but I wouldn't..

[Southpaw]

Yeah, 35 on the stock rims. You can run 37's with as little as a leveling kit. This doesn't apply to aftermarket rims though, just stock.

[fifty]

Quick question on this. Will the stock rims support a 35-12.5-20 tire without being too sway-ee?
I guess what I am trying to say is a too wide of a tire on a skinny rim make it crappy to drive over 55?

[Painted Horse]

Goodyear and BF Goodrich both make a 285/65r20 that is 34.8" tall and still fits on the stock 8" rim. ( although the recommended rim width is 8.5") But that's better than putting a tire that wants 9" or 10" rim on an stock 8" rim.

Nitto makes the grapplers in 295/65r20 which are 35.47" tall and use a recommended 8.5" rim.

all of these keep your load capacity equal to or higher than the stock tire size and run at 80psi unlike the 35x12.5r20 tires that run at 65psi and lower your load numbers.