You need the engine, wiring, computers, transmission, etc out of the V8 truck. It is easier to buy a different truck.
NoNo
2012 Ram 1500 wheels will fit on a 2003 .
NoNo
No grease zerks on a 2003 Ram 1500.
No, it will not fit.
A 316 motor is not a direct swap with a 360 in a 2000 Dodge Ram 1500. Both engines are very similar but have different connectors and mounts.
Yes, a 2003 Ram has a purge valve.
The price of a 2003 Dodge Ram will vary depending on the condition and mileage of the vehicle. As an average the 2003 Dodge Ram 1500 would cost $9,196.
yes
I have a 2003 Dodge Ram 2500 and mine is on the fuel rail
yes
Completely different, not interchangeable.