i think it's each car for themselves, 1.75 neuspeeds and decent wear, but a friend has same springs with a kit and eats them up horibly. i definetly wouldn't worry about the rear at all, mine wear a little but can be offset by having your tires un mounted and flipped over to wear the other edge. i did this when i had them powder coated and it wore the most even of any set of tires i've ever seen