I have a 1940LTD, and have a broken piece on the bottom of the door frame that mates up with the bottom lower door piece, one side is fine but the other side is broken off. Any idea what this would be called, or how to search for a replacement? You can see the broken area, it was a solid piece that came out about 3/4" and would slide into the lower frame when you set the door in place to keep it from wobbling.