2004 Dodge Ram Trucks Differential Carrier Ram 3500 - RWD - AAM 11.5 in. Rear - Standard Open Carrier Case - Loaded w/ 30 Spline Spider Gear Kit - 12 Bolt Case - Rear guaranteed to replace your current 2004 Dodge Ram Trucks Differential Carrier Ram 3500 - RWD - AAM 11.5 in. Rear - Standard Open Carrier Case - Loaded w/ 30 Spline Spider Gear Kit - 12 Bolt Case - Rear. 2004 Dodge Ram Trucks Differential Carrier comes new OEM 2004 Dodge Ram Trucks Differential Carrier aftermarket new 2004 Dodge Ram Trucks Differential Carrier of remanufactured 2004 Dodge Ram Trucks Differential Carrier Ram 3500 - RWD - AAM 11.5 in. Rear - Standard Open Carrier Case - Loaded w/ 30 Spline Spider Gear Kit - 12 Bolt Case - Rear.