[richysh]

Don't I need to? If not, how do I get to the tail light?

just open up your tailgate and you will see one or two grey covers covering up the bolts on the tail light. unscrew those and get a flat screw driver and a towel or something to put it on the end of the screw driver. and stick your flat screw driver in between your body panel and your tail light and gently pull em out. just be careful and take your time