Does the same Vehicle Speed Sensor send information to the speedometer and automatic transmission?

My speedo quit working, then the transmission immediately started acting up, shifting out of gear several times while accelerating from a stop.
Any chance that the VSS could cause both problems? Also, where do I find the VSS, do I have to take apart the transmission?

Thanks,
Dave


'95 Contour GL, Zetec/ATX

Repairs: * wheel bearings * sway bar stop * left CV joint * alternator * shift interlock *heater tube * VSS *tensioner *
Why do I still love it?