ok so i have the f150 7700 series and i wanna know 2 things. 1) can i fit 35's i currently have 33's and they seem to have quite a bit of room. 2) on the stock 7" wide rim what is the widest tire i could run safley.

Thanx in advance

 

With the stock wheels, I'd stick with the 295/76-16 (34x12.00) BFG AT KO.

 

Another option would be Q78-16's depending on brand they are 35.5-36 inches tall with a 9 to 9.5 inch wide tread. They are designed to fit 7-8 inch rims.