Originally posted by Derrick Adams
Reading thru these definitions, would adding taller or shorter tires than stock contribute to bumpsteer, much like changing offsets of the rims?
I understand where your question is coming from, but no that wouldn't change bumpsteer. Bumpsteer is strictly controlled by the pivot point of the a-arms in realtionship to the pivot point of the tie-rod ends. If the tie-rod ends are at different pivot axis' than the a-arm pivots, when the arms cycle through their motions they all move at different rates. This is what causes bumpsteer.

Now as far as what is actually effected by the taller or shorter tire scenario, I need to think about this a bit before I leave an answer.