Or generalized statements like this is what im referencing because it is not accurate.......(pulled from another thread)
F450/4500 dully Truck is a must for safety for a 40' FW regardless of the
Generally speaking, a 40' FW has got to be over 12k lbs or so, empty. Once you fill it up, you're in the 350/3500 dually range and definitely not SRW. Some of the super heavy FWs, such as Mobile Suites, Teton, and NuWa, would probably need an MDT.
These are just examples....plenty more i could choose from.....
2012 Ford F350 6.7L SRW w/FX4 SB
2013 Forest River Sierra 365SAQ
Camping Days: 2012 - 114 (as of 10 Jul 12)