Where are the two sensors located on 93 aerostar 4.0 Electronic 4wd transmission to stop hopping at low speed turning corners?

If I remember right the sensors are located in each differential, front and rear- towards the top. I think above the pinion. Hope that helps. I believe the front axle speed sensor is located on top LH side of transfer case and the rear axle speed sensor is located on the top RH side of transfer case.