Is the RAM 3500 dually truly necessary, or will a RAM 2500 handle a large fifth-wheel RV in Quebec?
The answer depends on the trailer's GVWR. For a fifth-wheel RV between 6,000 and 9,000 kg, the RAM 3500 dually is strongly recommended: the dual rear wheels reduce lateral sway, spread the load across six contact patches instead of four, and lower the kingpin load per tyre. For a fifth-wheel below 5,500 kg, a properly configured RAM 2500 Cummins is legally and mechanically sufficient. On Quebec's Gaspesian coastal routes or northern roads with crosswinds and crowned pavement, the dually's stability margin justifies the price premium — especially if the trailer exceeds 10 metres in length and is prone to aerodynamic buffeting.






