I've got 285/75 Nitto DuraGrapplers on my truck and LOVE them! no rubbing anywhere, and they've been holding up very well.
with my mega cab and a front replacement bumper, they want 70lbs in the front!

I will NEVER put D rated balloons on one of these trucks. They wear out too fast, don't handle as well, and seen too many seperated treads to risk it w/ my truck
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'06 Mega Cab 2500 4x4 auto. tranny by HotRodDiesels, Smarty, Fleece Performance stand-alone VNT setup, etc. "it makes cool noises"