Why would a car shake while driving?

Shaking Problems

It could be your alignment. If it's off it shakes.

If the vibration is from about 45 mph and faster the tires are out of balance or bad.

If its vibrating at a slower speed you have a bad suspension part and if it vibrates at idle you need a diagnostic and possibly a tune-up.

First check the balance of your tires. This is the cheapest scenario. Then the suspension and allignment.

More advice:

• Check for mud, ice or sand in rim. Check wheel bearings for play if none,test driveaxles by lifting car up and holding one wheel with a bar while someone puts in drive and presses on the gas to see which side the shake comes from. I replaced both axles and the shake was less but still present. I changed the carrier with spiders and the problem went away.

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