Ductape Dave wrote:
Been checking out the new Dynamax REV 24tb on the new Promaster chassis with the twin rear beds online, looks like the kind of floor plan I want but its disappointing with single rear wheels and only 2000lb towing. I guess this is aimed at owners who are definitely not towing!
The Promaster doesn't have dual rear wheels in any configuration. It's not an option offered by Ram.
I'm not sure that dualies on a front wheel drive vehicle make as much sense as on a rear wheel drive vehicle, either. The weight on the front wheels is relatively constant as the carrying capacity of the vehicle increases (more so than the back wheels, at least), and with too much weight you'd start being limited by what sort of traction the drive wheels can produce. This would especially be problematic with class C motorhomes where the front end sometimes tends to be light and the rear heavy.
The Promaster seems to be a pretty nice chassis (from what I've read), within its capabilities, but it appears to be designed for comparatively lighter rather than heavier applications. A big, capable RV chassis with large carrying and towing capacities wasn't their target.
I notice that the Dynamax web site fails to give either the dry weight of the Rev or its CCC, but only the GVWR and GCWR. I suspect that there's not much cargo capacity given the 9350 pound GVWR.