there is no cable you have speed sensors located in the tail shaft of the transmission
by washing
In the tail shaft housing. you have to remove the drive shaft and the tail shaft housing to get to it.
on the tail shaft of the transmission
Trucks used the long shaft transmissions.
If you are talking about the SPLND STEEL center shaft that the driveshaft slides over, Then you will have to take the transmission APART to remove the shaft.
the tail shaft of the tranny on the speedo cable
Change the tail shaft of the tranismission from a 4WD tail shaft to a 2WD tail shaft and use a 2WD tail housing.... The 4WD transmissions has shorter tail shafts and tail hounsing, while the 2WD has a longer tail shaft and tail hounsing.
Burned out or a broken wire or a bad switch.
Tail Shaft is the section after the propeller shaft of a shift. Any shaft is always placed farthest from the head, where the power is applied.
I don't know what year, make or model you have but most transmissions have the speedo mounted in the tail shaft extension housing so, if you remove the tail shaft housing you can retrieve the speedo gear.
Driver side tail shaft of the transmission.Driver side tail shaft of the transmission.