1.5 front and rear, prokits. It's sort of in between needing a kit in the rear. My rear is 1.5 and 1.8 on each side. Which is fine but it will wear more quickly. Even the 5,000 miles i put on my stock tires was noticeable. It also depends on the car. Not all will be the same. For example, my fronts, one side they could amost get to zero but the other was at 1.1. I also have less caster on that side which leads me to believe somebody knocked a curb or somthing pretty hard. Use numbers as a guidline. Accidents or any severe hits can throw these numbers way off of an accident free car. Plus, every car is not the same, mileage, etc, can throw things off as well.