My 60 has a rattling sound squeek that can be heard in the cab and underneath around the steering column area. I looked for a zirk fitting or something but cannot find anything. It does when you are turning, going straight, on smooth road, on rough road. I have been turning the stereo up to drown it out, but I would rather fix it. Any ideas? Could it be the plastic on the column? I cant get it to stop in the cab by putting pressure on various places.