Hadrian

Hello all Mine is a 2020 silverado custom 2.7L turbo and it does the same but what I've notice watching the rpm it does it as I accelerator a small amount and it shifts back and forth between gears I think it has something to do with that I checked all my u joints they're all good and all mounts are good only does it at low speeds and a little bit of throttle just when your trying to keep at a speed around 40-60km/h