Same lifters and issue with both motors. Last May we rented a 2021 Suburban to go cross country. The truck was being brought in from the airport rental store. As we stood in front awaiting here it came limping in. Yep brand new-- lifter went bad. We were packed and ready to go. Had to wait till 4 hours later when they found another. He told us they had two new ones both bad lifters at the dealer. So our trip was delayed one day, and we put 9000 miles on that truck. Beautiful ride, was flawless. BUT believe me I was concerned in some parts of the country!! We came home and bought the only 3.0 diesel we could find as the market went nuts! Good luck