wolfe10 wrote:
On the older F53's there was no track bar/panhard rod as fit on newer F53 chassis.
This allows wobble between axle and chassis (side to side motion). Particularly if hitting a transverse bump, like RV tracks at an angle to coach direction, it could cause what was known as "death wobble". If encountered, must slow down until harmonic wobble quits.
Yes, it can be loose wheel bearing, out of round or balance tire, bent rim, worn steering component, etc, but if the basics checkout, add a track bar.
Would this wobble be consistent? Mine does it every time at same speed.