Welp my truck just "dropped" a lifter

I was driving home and I accelerated through a yellow light (that I couldn't have stopped in time anyways). I got out of the truck, and heard a noticable tick that wasn't there when I left work.
I shut the truck off, and fired it back up still ticking. I called a good friend of mine who is a gm master tech, and he confirmed my suspicion. He said I caught it really early , and sounds more like a "weak" lifter, but will collapse at any time, and most likely do more damage including wiping a...

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