Hey guys I have these springs an I noticed they are a bit shorter than orig .ones an they have part # number .Also it appear one spring has 4 leafs an the other has 5 leafs was this factory concept upgrade leaf springs. they appear to look very unused the bushings still have dark black color,what are the possiblites of these springs being specail rate option? you guys want the part #'s for reseach?
joe