Left front vibration 2021 AT4

[Kmaycc1]

My left front has a vibration at low speeds while coasting or braking lightly. It’s usually between 10-13 MPH. last week in a rainstorm and heavy traffic 0-30 MPH while coasting or light braking it became a shudder that shook the whole truck. It’s been in the dealership twice for this. They thought it was the left drive shaft per a GM bulletin but that didn’t help. It’s going back in 2/2/2024 anyone else have this problem? Under 30k miles.

 

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[Randall]

My left front has a vibration at low speeds while coasting or braking lightly. It’s usually between 10-13 MPH. last week in a rainstorm and heavy traffic 0-30 MPH while coasting or light braking it became a shudder that shook the whole truck. It’s been in the dealership twice for this. They thought it was the left drive shaft per a GM bulletin but that didn’t help. It’s going back in 2/2/2024 anyone else have this problem? Under 30k miles.

Front drive shaft has up and down movement and it should not- get it inspected