I did a search last night on rockauto. Com but couldn't find any reference to a speed or distance sensor. Normally I have real good luck on that site and they show nice pictures.
A '91 model might still use a speedometer cable. If so, follow it to the transmission. It will likely screw into the speed sensor. If there is no cable, you will only have a speed sensor and the speedometer will be electronically-controlled. That sensor will have two or three wires connected to it.
Wednesday, June 29th, 2011 AT 9:51 PM