I recently took the header off of my 55 parts combine with the hopes of putting it on my 4400. My brother sold the 216 header years ago because we were constantly having to cut fences when we done custom work. We did not have a header trailer at that time. After taking the header off I noticed the bottom of my 55 header curved in at the bottom and my 4400 feeder house face is flat. Apparently this is not a 100 series quick tach header? My 4400 has been sitting in the barn for about 20 years and my injector pump will not pump. Would it be better to send it off for a rebuild or try and find a salvage one?