How do you replace speedometer cable on 1974 Plymouth trail duster?
Unhook or screw from the back of the speedometer and the side of the tranny
Disconnect speedometer cable from back of speedometer gauge by twisting the threaded collar to unscrew. Then just slide the old cable out of cable housing and insert new one. If cable is broken you may need to disconnect cable from transmission tail shaft to remove part of the cable. Cable must be inserted into the gauge end of the cable housing.