On the passengers side of the trans about even with the front of the door fan shaped switch held on by two bolts.
I suggest taking it apart and cleaning it before you think about replacing.
The switch is nearly $300
To remove, flatten out the retaining washer side under nut, remove large nut, remove smaller ( 14mm ) bolt on the adjustment side. Connector for the wires is top left of engine at the firewall, black connector with about 8 wires, you will need to snip 3 or so zip ties to get it free.
cleaning is easy, 6 screws in back, pull apart, clean out all that old grease, pay special attention to the two contacts on the sweeper arm, they should move in and out easily as they have springs underneath and are the man contacts, apply new di-electric grease and reassemble.
reassemble and align before tightening, easiest way is to put trans selector in R and move switch until reverse lights come on.
The 1998 Ford F1 50 pickup truck neutral safety switch is located on top of the transmission. The neutral safety switch will be near the front of the transmission.
on the transmission
The neutral switch is inside the transmission next to the valve body..It's called a PRNDL switch..not an easy job...
A neutral safety switch prevents the car from being started in gear which can make start moving unexpectedly. If you need to replace the switch, it's likely that it is broken. Switches usually go bad from corrosion.
The neutral safety switch is located on the transmission, passengers side.
If it starts up in any gear, manual transmissions does not have a neutral safety switch.
The Ford Neutral Safety Switch is an electronic part with the main function to stop the vehicle from getting started while in gear. The truck will not start when the switch is faulty.
its screwed into your transmission,loosen both wires and unscrew part and screw new one in and connect wires.
It only allows starting in park and neutral and it turns on the reverse lights.
The Neutral safety switch is located on the back of the automatic transmission. it is quite simple to replace. It is probably easier to replace from under the vehicle, but it is accessable from the top if your vehicle is not equipped with ABS.
this is a GT with floor shift and 3800 engine
Under the shifter cable on top of transmission.