I have seen listed in our parts descriptions, a type of rubber shock absorber that goes above the rear muffler. I think it is installed above the rear muffler hanger, but I'm not at all sure. I didn't put one of these on my 250SL years ago, when replacing the muffler system. Does anyone have a photo and/or description, that shows where this goes and how it is installed. Is it only for 250 SL's, or did the 280SL use them also?