Feels like a bang when accelerate and again When brake

[Antonio Castro]

Silverado 2015

90000 miles

I feel a bang  mevery accelerate and also feels every brake.

Just being stopped and accelerate is when I feel and when I’m  moving and I’m about to stop completely, I feel  it again.

 

When it's moving it makes the changes normally.

Only at the beginning and at the end is when you feel the issue!

 

what do you think?

 

 

[FlipZ71]

Start with checking..

1. U bolts on axle 

2. Spring bushings 

3. Driveshaft u joints 

4. Trans mount 

5.exhaust hangers 

6. Spare tire mount 

[BrightWhiteDC]

Same issue. It feels like something is in the bed rolling around but isnt. And it's with the body/ driveline. Dealership said they didn't know and left it at that. Let me know if you figure anything out please.


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[MaverickZ71]

Maybe the infamous GM driveshaft clunk?  If so, it's a common thing that GM hasn't fixed across 3-4 generations of trucks now.