Let me be the first to comment on my own post and ask a further question. I read of the older posts suggesting the ramps are touching the vibrating section. A light bulb went on when I read that and perhaps that poster was suggesting that they touch the (vibrating) runway of the CAR. That would in turn cause those ramps to vibrate more than they do from just the platform motor behind the ramps. Mine just miss touching by about 1/8 of an inch. Not sure how I'm going to adjust that , though, as the track proximity to the ramps is pretty much fixed by the track tray. Also might invite interference with other cars that are slightly wider than the cattle car, even with ramps flipped up. Invite more comments from here..