The 2016 GMC Sierra is on the side of trailering.
A $350 option will provide you with a new gooseneck/fifth-wheel trailering prep kit. It has a tray that can accommodate fifth-wheel hitch mounting brackets or a gooseneck ball hitch. The option also includes a frame-mounted hitch platform. You can find the platform underneath the car’s bed floor. In case you don’t need the hitch, it can be removed. Then you will be able to fully use the bed’s cargo capacity. The pack also features a bed-mounted 7-way trailer wiring connection and caps for openings in the floor.
An innovated gooseneck connection pack boasts two chain tie-downs and a 2-5/16-inch ball hitch, This offering costs $315. GMC dealers can sell you CURT Manufacturing fifth-wheel hitches. These hitches are compatible with the factory-mounted hitch platform. They can be obtained in 20,000- and 25,000-pound variants (costing $939 and $999 respectively)
An enhanced trailing camera set-up has been created with Echomaster. Actually, there are 3 cameras: one for rear-vision of the trailer and two side-view cameras. The rear camera should be placed on the top edge of the trailer. Only in such a way it will be able to provide a full view. As to the side cameras, they are integrated with the trailer mirror housings. Thankfully to this they can provide a better vision on the sides. Such camera system can be obtained for $999.