AMP Research BedXtender HD Max U-Shape Design - Black Model 74822-01A RS108ADW40 The 1702703 Buyers Underbody Box

The 1702703 Buyers Underbody Box is one of the best underbody truck boxes for your money

The ru nning boards also feature hardened plastic end caps that eliminate sharp corners and add a professional touch

Heavy duty chains and weld-on continuous stainless steel hinges are strong

Limited lifetime warranty (one-year finish

The 1752810 Buyers Underbody Box is one of the best underbody truck boxes for your money

AMP Research BedXtender HD Max U-Shape Design - Black Model 74822-01A RS108ADW40 The 1702703 Buyers Underbody BoxAMP Research BedXtender HD Max U Shape Design Black Model 74822 01A 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. Classic u shape design provides maximum cargo capacity. Durable black or silver powder coat finish Easy to install and easy to remove 3 year 36,000 mile warranty Lightweight, super strong 6063 T6 aluminum