I have an '05 3500 quad cab dually. I am gathering that the four rear wheels are costing me a premium in fuel over being an SRW. Are the axle widths the same between an SRW and DRW? WHAt wheel can I use that will sort of match the front one and will it look way too dorky? how much would it cost? Could I safely use a wheel spacer to push a SRW out to fill the flare? CAn I just have either the outer or inner tire take off or can I just take off the entire outer wheel/tire assembly with no problem? I am in between using this truck for anything besides grocery-getting. Can't afford to get rid of it either. I would love some input guys and gals!