I have been using 2.5" Sway-A-Way Racerunners with remotes with a long arm conversion on my '85 CJ for four years now, and they have worked perfectly the entire time. As modified, the CJ is very close to the weight of the Frontier at just a bit over 5,000 pounds, and the 2.5" system handles that weight without issues even with constant harsh terrain and relatively high speeds. I would expect the Sway-A-Way product to be an excellent choice for the Nissan applications.