I have just purchased a new h&r suspension for my w210 e320 cdi. I've noticed that the front and rear springs are identical. However looking at the shims I've just got from the dealers the rear ones are wider. Can somebody confirm if the rear springs need to be wider than the front ones. I was going to get them fitted in tomorrow so need to know asap as I would need to cancel on the garage and don't really want to do this at the very last minute.