2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Try replacing your resistor. Its a small part and costs about 10-20 bucks and can be changed on your own. I cant remember where the blower fan is on your truck its either on the fire wall under the hood or under the dash. It can be identified by the plug that goes into it and the two small screws that hold it down just look for an electric motor and the resistor is right near it. This part controls fan speed.