One problem related to transmission slip out of gear has been reported for the 1998 Dodge Dakota. The most recently reported issues are listed below.
In winter time transmission does not want to shift out of low gear when it should will eventually usually at about 1500 to 2000 rpm after gets really warm still will not shift properly. Changed fluid myself with atf 3 or 4. Have had at shops no one really knows what causes this they guess a lot.