Can I change my spark plugs? on 2002 Chevrolet Avalanche 1500

I have a 02 avalance z71...has anyone changed their own? Can you help walk me through mine. Thanks.

Asked by for the 2002 Chevrolet Avalanche 1500
Change them one at a time. Check the electrode gap before you install the plugs. If you haven't done this kind of work, you may be happier in the end if you have a pro do it.
If you want to find a GM specialist, here's a directory link for you: