2004-2006 Dodge Ram SRT10 T56 - 9" rear driveshaft. If you are contemplating a 9" rear swap in your 2004-2006 Dodge Ram SRT10 regular cab a custom driveshaft is in your future, but the cost and downtime of that custom part doesn't have to come with it. We have in stock and ready to ship an aluminum driveshaft to suit this need.