rhagofo, I was referring to the actual axle load capacity......not tires/wheels, springs, ect. Merely, the load capacity of the axle! Beefing the accompanying components, increases the truck load capacity! Without going into lengthy internet research, several years ago the Ram 3500 HD axle rating ( not truck load rating) was the same SRW or DRW. The DRW was axle slightly longer to accommodate the DRW’s. The rear brake discs and caliper assembly were also slightly larger = more braking surface area, to accommodate the extra tire contact patch area afforded by having dual rear wheels. That same contact patch area, greatly works against you on very slick surfaces .....unless you have a lot of load on the back of the truck. For my personal uses....I need a truck that will perform (unloaded) on slick surfaces. We also go places where the fenders would quickly be removed from a DRW. We all have different needs/applications for our trucks.
Which brings me back to the weakest link on the SRW.....wheel/tire load capacity! memtb
