BAK BAKFlip MX4 (GEN 3) 20-26 Silverado/Sierra 2500HD/3500HD 8'2" Model 448134 13494 Vpack Gen2 CB/SB The 1702210 Buyers Underbody Box

The 1702210 Buyers Underbody Box is one of the best underbody truck boxes for your money

The slide down system extends the ladder an extra two feet after the drop-down rotation

5in deep for use as the top shelf of a 42in wide by 13in deep cargo van shelving unit

5' bed (for a complete listing of vehicle and installation bracket compatibility

BAK BAKFlip MX4 (GEN 3) 20-26 Silverado/Sierra 2500HD/3500HD 8'2" Model 448134 13494 Vpack Gen2 CB/SB The 1702210 Buyers Underbody BoxBAK BAKFlip MX4 (GEN 3) 20 26 Silverado Sierra 2500HD 3500HD 8'2" Model 448134 The best selling truck bed cover in the world just got better. Introducing the new and improved RealTruck BAKFlip MX4 (GEN 3)an evolution of RealTruck's most popular tonneau cover. This next generation upgrade builds on everything truck owners already love about MX4, now enhanced with improved functionality, greater durability, and elevated security. The new and improved