Hello fam, I have a 22 ecodiesel 1500 with factory tires/wheels (22's) and 3.21 gears. im wanting to put on 35's. Im not concerned with rubbing (have revel links coming in mail) but I am concerned with wear and tear to the transmission and possible major hit to mpg's. Ive seen quite a few people comment online on the 3.21's inability to hold 8th gear and constant shifting back and fourth at 70-75mph on freeway and would be pissed if that was the case. I had a 21 1500 with Hemi w 3.92 that did well with the 35's (Nitto RG) and was able to hold 8th gear on freeway, still with a little drop in mpg which I was ok with. Im loving the mpg's im getting now between 27-30mpg w the ecodeisel and dont want to ruin the ride with watching the truck working overtime at higher speeds. I do a ton of driving in LA/OC as daily driver (20-25k mi per year). Thanks!