How to change the tail light bulb on a 2007 chevy silverado w/utility bed?

I need an image of the assembly if possible. I have already tried the checy website. It is not the same as a regular bed.How to change the tail light bulb on a 2007 chevy silverado w/utility bed?
Different lights on different beds. Is this a sealed unit light assembly mounted in a rubber grommet like on an 18 wheeler trailer? I have seen

some of the new light assembly's that are the LED assembly's that

have a metal ring riveted to the body to stop theft.

curly hair

date with a girl