Had an inspection 2 today at my local indy and they have identified a few problems that need to be addressed. One of them is a broken rear spring I am not back home until Monday so have told them not to tackle the job. I want to do it myself and I have read that you should replace both at the same time, which shouldnt be a problem, but I have read that you need to get it Realigned??? after you have replaced them, is this necessary???