I was told by my dealership that I have to change my driving style because I like to tap the gas on the interstate. BS. If you are still having this problem and do not care if you have the AFM, Range technologies has an AFM bypass. Plug and play. Slightly less gas mileage, but no shudder and no drone. It acts like an additional mod bus and cancels out the AFM. It leaves your truck in full time v6 mode. It does not over-write the computer. It takes ten seconds to install and is awesome to not have the shudder or vibration.
