2011 Chevy Silverado AFM lifter failure.

Hi guys here's a quick look at what I'm working on today. Unfortunately it My very own 2011 Chevy Silverado 1500 4x4 with a 5.3L. . . Well here we are again replacing AFM lifters and these ones are only 5 months old and 10k miles on em. Next time I do any lifters I will be doing the DOD elimination with a cam. Texas speed has nice kits, I think I'll be using them for those upgrades.