Previous vehicle 2011 F350 SRW 6.7 diesel crew cab 6 1/5' bed. Present vehicle 2017 F350 DRW 6.7 diesel crew cab 8' bed. Both towing Cardinal fiver weighing 12,400 empty. The 2011 SRW towed the fiver well. The 2017 tows the fiver great. There is a noticable difference in stability in strong winds and curvy roads with the DRW. I am not constantly steering the truck. Something that I never really noticed until I changed vehicles. If you have a SRW and never towed with a DRW then you will most likely be satisfied with what you have.
