Need help. I am looking into lowering my 2003 W/S210 wagon RWD. I purchased the H&R sport spring kit which drop frt 1.4 and rear 1.3 inches. I was told I do not need rear springs as its adjustable by rear valve? I was told I need rear springs and the rear SLS will adjust with the front ride height or I was told it will adjust with the original rear ride height which means it will constantly try to increase the rear height after being spring lowered. Which really is it and what do I need to do to get this done correctly? Any help is appreciated. Thank you. Yes it is a W/S210 chasis not the W211 for the wagon for 2003.