The Hellwig Silent Support helper spring kit for 2016–2020 Nissan Titan XD adds a two-leaf auxiliary spring to provide up to 2,500 lb level-load capacity. The over-axle mounting uses Silent Support bushings for quieter operation and tunable hardware for load adjustment. Easy installation and a limited lifetime warranty make it a practical upgrade for towing and heavy cargo.
Hellwig 16-20 Nissan Titan XD 2 Leaf Pro Series Helper Spring Kit (Up To 2500lb Level Load Capacity)