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Reply To: 2021 GMC Sierra 1500 AT4 Lifter Collapse

July 12, 2024 at 6:12 pm #821650
Parts Man1
Participant

You have 21 with only 3600 miles!!!!!!!!!!!!!!!!!!!!!!! You still have the first generation lifters and the generation sure seems to have cured the problems. I’ll look on monday but I believe our sales our down 75%. You should be good after this work

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