AMP Research BedXtender HD Sport - Black Model 74805-01A 15-1/2" W greatly increasing its rigidity and

greatly increasing its rigidity and resistance to warping and binding

These boxes have the best track record for remaining water-tight and theft-resistant for many years

3500 HD extended cab (see application information to verify vehicle fitment)

Drawer utility boxes are super heavy duty

acid and other harsh chemicals

AMP Research BedXtender HD Sport - Black Model 74805-01A 15-1/2" W greatly increasing its rigidity andAMP Research BedXtender HD Sport Black Model 74805 01A V shape design is the perfect mix of form and function that keeps your gear secure. Provides the extra clearance needed when used with some tonneau cover rails. Flip it out with the tailgate open to gain up to 2 feet of enclosed cargo area. Flip it inside and close the tailgate to keep tools and smaller cargo contained in the truck bed. 3 year 36,000 mile warranty Durable silver or black powder