Wheel wobble

When hitting say a manhole or pot hole I have noticed recently an increase in wheel wobble through the steering wheel. I have recently replaced the pan hard bushes for polybushes and check tightened everything yet still experience the wheel wobble. Any thoughts?

I'm thinking possibly worn steering damper?

Are you sure it's wheel wobble.? If you are experiencing a vibration it may just be wheel balancing. Check your tracking and wheel bearings.

My money is on worn swivels.

Changed steering damper for a Terrafirma heavy duty item today and the issue has been resolved. The standard damper that was removed was well past it's best.

Should not have any wobble even without a steering damper if your swivels are in good order. Damper is merely covering up another issue that will return.

+ 1 on swivel pins!