1996 Ford F250 Owner's Manual - Page 179

Driving When to use j (Overdrive) This is the normal driving position. As the vehicle picks up speed, automatic upshifts to second, third and fourth gears will occur when j Overdrive is chosen on the selector and the transmission control switch has not been pressed. The transmission will shift into the correct gear when the right speed is achieved, for the accelerator pedal position you have chosen. When to use Drive You will note that there isn't a drive position on your gearshift indicator. However, you will find a Transmission Control Switch and an indicator light labeled "Overdrive" located on the end of the gearshift lever. Press this switch and the word "OFF" will illuminate on the shift lever knob. With the word "OFF" illuminated, the transmission will operate in gears one through three. Operating in the Overdrive "OFF" mode gives more engine braking than Overdrive and is useful for descending hills or when towing. Transmission Control Switch and indicator light (located on the gearshift lever) 177