not to clear on the way this all works but some have said that a truck with small rims but big tires doesnt mess with the trans and breaking as much as a truck with big rims and small tires and vise versa(when towing or not towing?)...i have 24's(up from 22's) on my denali and i notice the difference in the trans shifting but not much with breaking while towing..also the stress on the truck itself?..any out takes on this???