Hello norCal-09, Alleydock06 here. Just wanted to update you. I went with the 285/75/18" Toyo A/T's, 2.5" Level Kit and recalibrated my speedo, could'nt be more pleased !!! What did you do about the spare tire ?? I still have the original 17" under the truck, but will put the same size 18" under there, if it will fit ??? I know the 17" will cause problems with my ABS and limited Slip, if I don't change. Since I have a shortbed, putiing the spare anywhere but under the truck, is out of the question. Any advice ? Thanks.