Can rear self leveling systems be converted to a system that replaces the struts with shock absorbers? Do the springs also need to be replaced to effect this conversion? Additionally, was this system an optional piece of equipment on the 560? I also own an '84 500 SEC and it does not have this self leveling hydraulic system. I pose these questions as I have a leaking strut and I suspect that it needs to be replaced. I feel confident addressing a simple shock absorber replacement and a bit intimidated dealing with the hydraulic system. Thank you in advance for any replies.

William