nothing, it is a direct replacment for your stocker, you might want to think about axle bearings if you havent changed them in a while.
so i dont need a new bearing carrier or anti fade nut i can just get the axle!! well thats good to know i was a little confused, i havnt changed out my bearings and i ride ALOT so is there a drop in kit i can add with the axle??[/b]