The rear shocks on my 1031 have gone out, vibration at 55 MPH despite new balance of the wheels. Looking around, I noticed a lot of rust dust on the lower leaves of the springs plus the top helper springs are nearly touching fore and aft...plus it looks like the rear end is riding lower. I am thinking the springs have taken a set due to excessive vibration from the worn out shocks. Plus the low beams seem to point higher than normal. Can anyone with a M1031 SECM measure the distance between the bottom of the rubber bump stops and the bump stop bracket? Also list how much equipment (weight is fine) you have in the back? I know places used to re-arch leaf springs..that seems like a lot of work to remove and replace.