Bongo Fury

My break light is not working, so i undid the 2 screws to take the light cluster out but it seems still fixed at the bottom - almost as if there is a secret screw somewhere. I have tried to put some force in removing it with no luck so thought i had better check that there isn't something else that i have to undo prior to removing the lights ???

bang the whole light cluster outwards,away from the tailgate. they are on a sliding fixing.

thank you northern.....