I was looking a K frame @ E Town this weekend that had the rounded skid plate & no coin on it,the date code stamped on front is 2174 0 the vender selling it said it fits 71/74 B & E,has the 2 idler arm brackets & 2 holes in front lip for sway bar brackets couldn't recall what to look for @ the time for the later sway bar mounting & pass through holes.what year would this be based on the date code.