How can I confirm my bed rail cap shims are correctly installed on my GMC Sierra or Chevy Silverado?

[DelJoseph]

To ensure your bed rail cap shims are correctly installed, follow these steps: First, verify proper placement. Each shim should be positioned in its designated spot, typically on the underside of the bed rail cap, oriented towards the truck's interior. Next, ensure secure adhesion by firmly pressing along the entire surface of each shim. This is vital for long-term hold. When reinstalling the bed rail caps, correctly align the clips and locating pins. Apply even downward pressure, working from front to back. Double-check the rear locating pin's alignment before snapping it into place. Finally, check for a secure fit. The bed rail caps should sit flush against the truck bed with no gaps or misalignment. If everything aligns, your bed rail cap shims are likely installed correctly, providing a snug and secure fit for your GMC Sierra or Chevy Silverado.