fattest tires on stock rims?
 

I got the stock size tires (255/70/16) on my F150 with the stock factory alloy rims. Anyone out there know what the widest size tires I can put on my stock rims? Also, can I put 60 or 50 series on the factory rims as well? Thanks for any help. :)

One of my friends had BFG All Terrains 285/75/15 on stock wheels on a 98 F-150 4X2 w/ no lift

Tire manufacturers have rim width spec requirement for each tire. Go by that figure rather than what someone else stuck on their rims. Too much width on a rim will create handling/safety problems, may result in tire rollover and void warranties.

My King Ranch came with 275/60R17 on the stock rims, which I think are the same width as the stock 16's.

violator-
 

With the stock rims it's fine to go wider and taller. As mentioned previously, don't go too wide. I used 275/60/16; any larger would start to bulge on my rims.

Max,

Do you have the 275/60/16 on the stock 4x2 rims?
What did you pay for your Pirellis? How do they look and handle? Got pictures?

Thanks, Violator.:)

violator-
 

Yes, they're on stock 16X7 rims.
They cost $120 each.
They look great, handle much better (very noticeable),& have minimal sidewall flex.
I don't have any pics that show good resolution of them.
You can see the tread pattern on a bunch of websites.

you can fit a 315/75R16 on a 7" rim...i did it, and i've seen it done many times over...