If all thats wrong is the wire is broke, thats a simple fix. Probably the easiest would be to put a butt splice where the wire is broke.

As for if you actually need a new part, you can try a junk yard (however, four wheel ABS didn't seem like a popular add-on to the Dakotas. You can try
makeitmopar.com as well.
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Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on 'alternative fuel'

1996 Dodge Dakota
1986 Honda Civic CRX