I reacently purchased a 1990 dodge power ram w150
i just replaced the fron brake lines and took it out for a drive to see how they worked.(they worked great) but i noticed my speedometer wasnt moveing. my first thought was to take off my under dash but then i thought to look under the truck at the tranny to find the wire for it. i dont really know where to start with this. and i would appericate any help on the subject.