Last fall I added the shock mount kits on my 93 R52. They made the feeder house very quiet during bean harvest until later in corn it made a clunking sound occasionally. Today when checking over I found both the rear mounts had broken off where they were welded to the frame. They tore a big hole in the frame where they were welded on and broke the end of the shock. Are they worth putting back on or are they a waste of time. The front ones appear to be fine.