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In this video I show you how to change your spark plugs on a 5.3 Vortec, Should be similar from 99-07c Silverado/Sierras and 00-06 Tahoe, suburban, and yukons. Demonstration is on a 99 Silverado. At the end of the video you here me complain about messing up a clip, luckily I was able to fix it during editing. Thank you for watching.