Sierra 1500 4WD V8-6.0L (2007)
5. Install the retainers (1) securing the trailer wiring harness (2) to the hitch platform.
6. Connect the trailer wiring harness connector (3) to the trailer wiring recepticle (4).
5. Install the retainers (1) securing the trailer wiring harness (2) to the hitch platform.
6. Connect the trailer wiring harness connector (3) to the trailer wiring recepticle (4).