Awesome man thank you both for the responses. And even though im pretty certain the answer is yes would a 31x10.50xr16 or a 33x10.50xr16 fit on the stock rim? Im sorry i am just absolutely horrible at the metric system only ever used good ol' imperial!

 

Yeah, either would fit fine.

 

Either a 265 or a 285. If you have 355s with 245s now, I'd just go with 265s mainly because of hearing and power. If you really want 285s, then you can probably go for it, but just have to make sure they fit on the stock wheel width. Some say that doesn't matter, but it does if you want to get the life out of your tire. If you put too wide of a tire on a thin wheel, the center of the tread will wear more than the edges, causing decreased performance, and uneven wear.

 

I've got 265_75 on stock rims mosttires up to 315-75 use a 8"to 10" wide rim

 

Gas tank. View from below rear bumper.

 

What the heck truck is that???

Tanks are inside frame on driver's side. What the . . . .