Leaf spring suspension system for a vehicle

A leaf spring suspension system for a vehicle comprising:

• a chassis rail;
• a pivot block operatively coupled to the chassis rail and rotatable relative to the chassis rail;
• a leaf spring operatively coupled to the pivot block proximate an end of the leaf spring;
• a half leaf spring operatively coupled to the pivot block proximate a first end of the half leaf spring and operatively coupled to a vehicle axle proximate a second end of the half leaf spring;
• and
• a hinge assembly operatively coupled to the leaf spring and to the vehicle axle, the hinge assembly rotatable about the vehicle axle during displacement of the leaf spring.