This is a great kit for you early SL and SLC owners. Fits all 450SL, 450SLC, 380SLC, and 380SL from 1972 to 1985. If you are getting a lot of body roll in the turns this kit will really tighten up the front sway bar.
Comes with all rubber and hardware as shown. Sorry no instructions but this is an easy and straightforward replacement. This kit lists for $92.00
You might also consider replace the front subframe mount rubbers at the same time. Look below in related products.