Thank you... except Wikipedia is reader created, it isn't an official source and most of the references are from magazine articles. Re: GM Authority, does that mean if the description doesn't mention AFM, that it doesn't have it? Re: changing shops, I'm 400 miles from home working for two weeks in a...

Hello everyone, A shop recently told me I have "common problem" of worn cam lobes and/or lifter rollers due to the AFM design on my 2018 Express cargo 6.0 with 58k miles. I did a VIN verifier search, which said my motor is the L96. I've read in several places the L96 does not have AFM, but...