Don't waste your time, they don't care.
Nissan used the same rear brake pads on the R52 Pathfinder, Sentra, Maxima, Altima, some Rogues, Murano, Juke and who knows what else. These pads most likely last a long time on a Sentra and Juke but not on a heavier vehicle.
Although it seems Nissan used a different pad on the rear brakes of the R53, they might still be too small.
At least those pads are cheap. I've learned to always have a spare set in my garage and replace them whenever I swap Winter/Summer tires. Just check them regularly so they don't damage the rotors.