Luverne MegaStep 6-1/2" x 88" Aluminum Running Boards Select Chevrolet GMC Model 575088-570713 90 Gallon The 1704310 Buyers Underbody Box

The 1704310 Buyers Underbody Box is one of the best underbody truck boxes for your money

Textured Vinyl Over Heavy-Duty Aluminum Slats

and the doors also have a MicroSeal stripping

Weather Guard 110 Gallon Gloss Black Steel Transfer Tank Model 362-5-02

Picture is of the same box with different dimensions

Luverne MegaStep 6-1/2" x 88" Aluminum Running Boards Select Chevrolet GMC Model 575088-570713 90 Gallon The 1704310 Buyers Underbody BoxLUVERNE MegaStep 88 Inch Premium Non Skid Aluminum Running Boards, Select Chevy Avalanche, Silverado, Suburban, GMC Sierra, Yukon XL Model 575088 570713 LUVERNE MegaStep 6 1 2" running boards are the ultimate combination of style and functionality. They have 5" wide treads that extend the full length of the side steps, and they feature a strong, lightweight aluminum core with a stainless steel trim for a bright, clean accent. MegaStep running boards