78 chev 4x4

[kpmink]

Ok, I have this truck. Sometimes when I run over bumps in the road the truck
starts to shudder, shake unitl I come almost to a complete stop then the
shuddering and shaking stops. The truck has a lift. There is a stabilzer bar.
On this stabilizer bar one of the rubber grommets is nearly gone. Could this shuddering be caused from this partially missing grommet?
What else should I check??

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