When driving in 2WD I hear a rattling/grinding sound?

Tiny
STEVEPL
  • MEMBER
  • 1995 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
However, when putting it into 4WD the noise stops. Any ideas on what this could be?
Monday, April 3rd, 2023 AT 4:36 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
This sounds like you need to check the rear U joints for wear, or you have a transfer case that needs to be rebuilt or is low on fluid. If you upload a short video of the problem, I could tell for sure what's going on. Here is how you can remove the drive shaft to check the U joints:

https://www.2carpros.com/articles/how-to-remove-a-drive-shaft

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Monday, April 3rd, 2023 AT 1:59 PM

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