first remove the wiper arms then take off the cowl grille (long hunk of tin) and all your linkage is right there
A lot of elbow grease is required too, they just pop on and off, but they are really tight and there's not much room to get the leverage you need. A long screwdriver for prying can be helpful with popping the linkages off and on.
Images of the wiper linkage for a Dodge Dakota are located in the service manual. It details where the linkage connects and how to perform maintenance on it.
The wiper linkage is bad. Or the wiper arm stud bushings (where the arms attach to the cowl) are rotted out.
in a fuse block
The windshield wiper relay is located in the electrical power distribution center.
The linkage bushing is located under the Crowl grill. Remove wipers and grill.
The 2002 Dodge Dakota takes 21" replacement windshield wiper blades on both sides front.
Linkage bushings on wiper arms coming off back side of wiper motor under cowling
Have you ever had the linkage adjusted? 90% chance this is the problem.
They are all done about the same. go here http://www.wikihow.com/Replace-Your-Automobile-Windshield
remove the cowl & wiper arms (mark location of arms on the windshield). disconnect the battery, Disconnect wire connector at wiper motor & remove the 4 mounting bolts then remove the linkage from motor.
It is on the throttle body, Opposite of where the cables hook on the throttle linkage.