Hi--I recently acquired a 1981 300D--upon closer inspection of the underside, I discovered one of the former owners covered up the jacking points with metal (I am guessing to patch for rust). In any event, I am now wondering what options I have for jacking it up seeing as the jacking points are covered. I am working with a floor jack and jack stands--I have worked with trucks before but not a sedan so I am not sure what my options are as how to get around this problem. Any advice on how to go about safely jacking it up would be appreciated, Thanks, Archie