Carli presents an innovative solution for reinforcing the rear shock mounts on your boxed-frame Ford Superduty. With the transition to a boxed frame in 2017, Ford aimed at enhancing frame rigidity and longevity. However, it posed a challenge for traditional bolt-on upgrades due to the absence of riveted buckets or shock mounts on the hollow, boxed steel frames. In response to this, Carli devised a two-fold strategy: accommodating a larger shock and ensuring a stronger setup than the factory Ford mount's single-shear, pin-style design. While a bolt-on solution wasn't feasible, Carli successfully developed these shock mounts, eliminating the need to remove the bed during installation. The process involves cutting, grinding, punching, cleaning, and welding, making it a straightforward task. Remarkably, both shock mounts were fitted on a test truck in under 2 hours, showcasing the significant strength improvement they offer. Delivering a substantial boost in strength compared to the factory stud, our weld-in rear shock mounts establish a sturdy foundation for your performance suspension setup. The Driver's side shock mount seamlessly integrates with the stock mounting position, welding securely to the factory shock mount. On the Passenger side, the shock is strategically positioned slightly forward from the stock mounting location, ensuring clearance for the hitch and bed cross-member. It's important to note that these mounts are not designed for use with factory-style shocks or shocks with bushings. The package includes misalignment spacers to adapt to any off-road race shock (such as King or Fox) with a 5/8" internal diameter uni-ball to the 14mm x 1.667" mounting dimension. While not mandatory, these mounts serve as an excellent upgrade for the Pintop 2.5 or E-Venture shocks. Upgrade your Ford Superduty performance with Carli's Weld-In Rear Shock Mounts for robust and reliable off-road adventures.