At the bottom of the tail gate there is a bracket and rod to the tail light. Remove the cotter key holding the rod in the bracket, that will release the tail light. The hardest part you will have will be removing the hinges from the bottom of the suburban. Make sure you soak them well with a penetrating oil like Kroil or rust blaster. It may be easier to remove the hinges from the tail gate and remove them from the body later after they have soaked awhile. I would invest in a LARGE can of Kroil if you decide to part out!