i did the stethescope and it came the loudest from the passenger. then i yanked the valve cover. and the rockers were wore out. ...
I'm curious as to how you determined they were "wore out"?
Do yours look like mine in the pic below? 195,00 miles and they're still good.
When the valve is closed/seated and you grab the rocker with your hand it will have movement > especially when the lifter bleeds down. And, a bad lifter not pumping-up will tick too.
When you removed the rockers, did you grab the valve spring to make sure the valve guide to valve stem wasn't sloppy?
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