My speedometer will read 35 and back to 0 at any speed.I dont see a cable? on 1993 Ford F-150

Is there a speedometer cable or what else should i search for? When driving 10 or 50mph the speedometer will read 35, and going faster it goes to 0. Where do i start to try to find the problem?

Asked by for the 1993 Ford F-150
2 answers
maybe the speedometer cable is kinked
Auto, manual, 4X4?? Vehicle speed sensor for the odometer, should be mounted at the same place a cable would be but with a wire connector instead. Scan test will confirm whether this sensor is working propperly or not. Or replace it and see!