I replaced mine a few months ago, my brother has an Asian import shop and we used one of his internal styled spring compressors. It wasn't too bad of a job but you need to have a clear head while doing it, a simple mistake could get extremely dangerous. It didn't change a thing so I guess my rears weren't in that bad of shape after all.

If you wanted to boost the rear springs up cheaply you could get some of those cast aluminum twist-in spacers. A chain store parts house would probably have an ample supply of them. I put some on a ratty 380 SL one time, the owner, a friend was a real cheapskate but I must say it made a big difference.

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Chas

Had a 380SL, 450SL, 380SEL, 420SEL, 500SEL

Got a Euro 500SEC right now.