the UPS driver stopped by the house and dropped this light off to me. so I put it on the 73. the skirt is just about at the can't use it stage as it been trimmed a few times but then so is the 73. first time I have had to get a good look at how federal did them. to answer the question asked earlier. yes you could make a 17 into a 17D easily. as it's all in the plate and bolt. any way tore it apart and put it back together again. this was the most common light I know of for combinations cars. now all I need to find is the plug set up for the 72. that way I can trade the light from one to the other. all you have to deal with is the hot wire as the light grounds threw the bolt. other pictures here. http://www.dropshots.com/jer57747#date/2009-04-16/13:32:43