There is a member that posted a pic of an OBS with a NBS bed on it....they preferred the supposed metal durability over the flex sides.
The flow lines from the cab don't match the bed's, and it looked out of place, IMO. You might as well have mounted a Dodge rear on it, looked about the same but, they liked it.
I don't follow the reasoning myself, one takes minor impacts and recovers; the other will have a dent. Hit hard enough to break/shatter the flex panel, then you'd also have a nasty dent with the metal that would still probably require replacement to repair.
2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"