How do you replace the headlight bulb located on a 2002 Chevrolet Avalanche?

the light above the headlamp snaps out after releasing a small plstic tab. This then will let you see two small diameter rods on top of the lamp assy. lift these up and the headlamp assy will come out inyour hands. Then the bulb replacement is obvious. P.S. use a paper towell or something to prevent the oil from your hands contaminating the new bulb. Any oil transfer will cause a hot spot and the replacement bulb will not last long.