I drove over a pothole sometime ago, and it cracked my tire rim and broke a piece off of my brake drum. I can't find any brake drums locally, only online. I am looking at some online which have fins, there are pretty much half the price of regular ones. Will it do something with my balance if I have a different type on each side?  thanks http://i.ebayimg.com/00/s/NTYyWDEwMDA=/z/2eQAAOSws0lTfWML/$_20.JPG