I have a 2002 Dodge Ram Quad Cab short bed & want a Quad Cab long bed dually. I was wondering what the differences are between the two. Are the frames the same and one is just shorter? Could a 4.7 auto with add ons do the job of a 5.7 or diesel that come in the 3500's? I'm trying to build what I can't afford. Any assistance is helpful.

 

Well just for the cummins engine is over 5k.

 

Trying to keep the 4.7, but get supercharger or turbo to increase the torque & towing power.