no it wont you have to have either a 98 or a 99 dodge ram transmission
The auto will not work, they use different control types.
Down the transmission dipstick tube.
A 2004 Ram 1500 has a 45rfe transmission.
Automatics either a 42re(V6) or a 46re(V8) . manual nv3500
Mopar ATF+4Mopar ATF+4
No
The purpose is to run the speedometer, and it is on the tailshaft of the transmission/transfer case.
The 2012 RAM 1500 has a 4-speed automatic.
The 2011 RAM 1500 has a 4-speed automatic.
NoNo
The cost is about 1500 dollars to 2500 dollars depending on where you buy it from or have it done. It is a lot cheaper than buying a new one.