TH68

Same problem here. 2021 TL, 5.3 and at 7900 miles it started shuttering going down interstate at 80 mph. Got off and went to nearest chevy dealership. Said push rod bent and been waiting on back ordered lifter. i was told “we can only replace the bad one” not any others that have not failed. Means I will be back again i guess. I will contact the dealer i bought it from and verify with them that only the failed part can be replaced. BS to say the least