thursday i get my leveling kit put on by FORD - will 285-75 r 18`s fit nicely - still don`t know what brand to go with - wanna get near 50,000 on this next set

 

On stock wheels I'd go with a 33/11.50. Toyo makes an all terrain that comes with a 60 or 65k warranty that's would I'd go with.

 

what does that equal in tire words is it a 285 ??

 

Tire Size Calculator - Tire & Wheel Plus Sizing

Theres a great resource for you
285/75/18 is incredibly hard to find in a variety of tires. Looks like Goodyear makes a few in that size. Nitto and Cooper does as well.

The more popular size of 285/65/18 is a slight increase over stock and works well.

 

The link to tire size calculator that MCDavis is posting it the best one I have seen.

 

I have the Toyo AT II's on my truck in a P285/70/17. They come with a 60K warranty, ride awesome and are extremely quiet as well. I highly recommend them.