Problem solved, we traded yesterday for a Class C motorhome. I agree that a SRW is just not enough for our heavy Fiver. That is the decision that we came to in 2002 when we bought the first DRW. I was trying to combine trucks into a commuter and tow machine with the SRW but I knew down inside that was not the right decision. Thank you all for your very insightful comments. This trade also eliminates the potential DEF problems associated with the 2011 and beyond diesels. A special thanks goes out to Obama Motors and the EPA!