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Rear differential sticking when in four wheel drive

Tiny
CREGI
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
I have the push button four wheel drive on my truck and when I go into either 4 hi or 4 lo I can hear the transfer case engage and the front tires get power to them however, the rear tires seem to be locked and do this hopping thing when I give it some gas. I am at a complete loss on what it might be.
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Thursday, October 5th, 2017 AT 7:02 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like the rear differential is locked up. When it is in 4wd block the front tires and use a jack on the rear to lift both rear tires off of the ground to see if you can spin one tire to see if the other tire spins the same way or the opposite way.

Here is a guide to help you.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Please let us know what happens and upload pictures or videos of the problem.

Cheers, Ken

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Friday, October 6th, 2017 AT 3:17 PM

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