Buyers Products 18x18x72 Inch Pro Series Gloss Black Steel Underbody Truck Box Model 1752825 Heavy Duty With the included utility trays

With the included utility trays and dividers/gun rack

Shipping Width (in) 13

Quad Cab has smaller back door - 31

Part number 4312-100 fits all full size trucks with an 8' bed

Buyers Products 18x18x72 Inch Pro Series Gloss Black Steel Underbody Truck Box Model 1752825 Heavy Duty With the included utility traysBuyers Products 18x18x72 Inch Pro Series Gloss Black Steel Underbody Truck Box 1752825 The 1752825 Buyers Underbody Box is one of the best underbody truck boxes for your money. The Elite Truck team recommends Buyers Products boxes to Truck Upfitters, Commercial Fleets, and Single Operators. It's hard to find made in the USA products built to the Buyers Quality Standards at this price point. For that reason, we believe the Buyers Underbody Series