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on a 2005 f250 with 17 inch wheels what are the width...stock weels
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Wheels are 7.5" wide.
Stock tires LT265/70R17 have a section width of 10.71".
Tire tread width will vary a bit by brand, but should be between the section width and the wheel width when mounted and inflated on proper-size wheels for the tire. For example, in tires size LT265/70R17 a Firestone Transforce HT has a tread width of 8.6" and a Bridgestone Dueler A/T Revo has a tread width of 8.2". The Bridgestone Duravis M700 is a new tire with an extra-wide tread width of 10.4", per TireRack.com. But that sounds too wide a tread for that size tire, so it may be an error in the specs.