641 As you probably know the ¾ ton boards extended all the way to the rear fenders. For a quick check, the outside length of the running boards is 93 1/2 inches. That separate piece that sits over the frame rail and just slips under the cab used to be 33 inches long. It extended about 1 ½ inches past the rear spring front hanger. Even had a nice hole in it for access to the grease fitting. (I just happen to be rebuilding mine right now),
