Owner's Manual
Page 416
... be used to the bumper if the hitch ball is considered a Class II ball mount. to help control these affects. Suitable genuine NISSAN hitches, ball mounts and hitch balls for pickup trucks and sport utility vehicles are required for installing and using the sway control device. The genuine... NISSAN step bumper is mounted to permit turning corners. Class IV hitch Class IV trailer hitch equipment (receiver, ball mount and hitch ball) ...
... be used to the bumper if the hitch ball is considered a Class II ball mount. to help control these affects. Suitable genuine NISSAN hitches, ball mounts and hitch balls for pickup trucks and sport utility vehicles are required for installing and using the sway control device. The genuine... NISSAN step bumper is mounted to permit turning corners. Class IV hitch Class IV trailer hitch equipment (receiver, ball mount and hitch ball) ...