Crank sensor failure. It is located on the front of the engine, points down to the crank pulley.
If it is not diesel, you probably have a fouled or disconnected plug.
change the fuel filter
Most likely cause would be a failed U-joint.
The bushing on the track bar. http://lukeslink.com/ this link has the fix.
The most common place to buy a Dodge 3500 Diesel would be through eBay. Although, there are many other websites that allow you to purchase a Dodge 3500 Diesel, such as the cartrucktrader.
There are several things that can cause your engine to misfire and the tachometer to not work properly. The most common cause is a malfunctioning vacuum hose.
A 2003 Dodge diesel manual transmission will work in 1990 Dodge diesel manual and bolt to the 1990's transfer case with little fabrication.
who ever said that a dodge ram diesel does not have a servo it is not true. I have a dodge diesel 2001 and it has a servo and the answer to this question is it had a vacuum leak in the servo vacuum line, changed that and cruise control worked great. the servo is under the drivers side battery.
Its going bad.
check the power steering rack or the steering pump
A failed instrument cluster.
Check the fuses near the drivers left foot