2006 6.0l Tire Question...

I have looked all over the net to include hours upon hours of thread reading on TDS. I have a 2006 6.0 4x4 with factory 20 inch rims. I have factory Goodyear's on right now. The factory tires are starting to chunk off (will not be buying Goodyear's) and need to replace them. I am looking at the 35x12.5x20 Nitto Trail Grappler's. I have a 2.5 inch Lift/Level kit on its way.

Here is the question. Should i get the 35x12.5 or the 37x12.5? I do not want to get rid of the factory rims. I am under the impression that the 35's will work without a problem, however I can't find anything on the 37's fitting without any issues.

I do not tow and do not go off road. This is for looks with the occasional detour on some dirt road.

Due to the condition of my current set of tires (factory Goodyear's) I have been forced to act quicker and cram a lot of research into a short period of time. Any and Every opinion will be greatly appreciated. Pics would be appreciated.

THANKS.

SOLVED : Had to go to another forum to get the solution. Everything worked out perfect.