Have a 1996 Tahoe 4 door LT with the 5.7 L 350. It sounds like a few of the lifters are stuck (high end loud tapping in several places- NOT bearings!). Instead of spending the $600 for new lifters, was going to swap out engines. What vehicles cross reference for the '96 Tahoe 5.7? ALL of the LT-1's or just a few years or ????