Carol...the V6 Frontiers sit higher than my 4-cyl Frontier (larger wheels/tires). If mine was a V6, I too would have to use a receiver hitch so I could drop the ball.
Regardless what's said, in my opinion and from my nearly 6000 miles of pulling the 13' Scamp
, a swaybar for the 13' Scamps is just dead weight added to the tongue....provided the tongue weight of the trailer stays where suggested- 10-15%. I'd be MUCH more concerned about tire pressures, keeping the diff. oil, motor oil, tranny oil, brakes
, etc properly maintained.
Anyway, as Bob stated, I went out and checked the factory bumper on my '99 Frontier. It states right on top- "Check the Owner's Manual". The owner's manual on my truck states, "Special hitches which include frame reinforcements are required for towing above 2,000 lb (907 kg)." I did not see the capacity stamped anywhere on the bumper....just the statement above.
For what it's worth, there's a couple of other points mentioned in my manual I think is of interest but probably heavily debatable-especially among different states. Here's the two points of interest quoted directly out of my manual:
*1: All towing above 1000 lb (454 kg) requires the use of trailer brakes
. NISSAN recommends the use of a tandem axle
trailer whenever towing above 3,000 lb (1,361 kg).
*2: A sway control device is recommended for all towing above 2,000 lb (907 kg). Sway control devices are not offered by NISSAN...yada yada.