WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Rear Suspension Member And Related Components With Torque Specifications (Without Rear Load Leveling Air Suspension System)
Courtesy of NISSAN NORTH AMERICA, INC.
Fig 2: Rear Load Leveling Air Suspension System And Related Replacement Components With Torque Specifications