Input and output speed sensor on the transmission?

Im sure its the vss. Its a manuel 1998 dakota v6. No speeddometer and tacometer. I bought the sensor and everything and checked online to make sure I have the right part and its right. I just cant find the dam thing. I looked at where the diagram said adn there was just nothing there no wire no plug. Im stumped

I pulled the code its the vss for sure and napa autoparts showed me the same diagram showing the sensor on the transfer case but im 100% positive its not there on my truck. I am very confused now. Any sugestions?

200 dakota, abs and brake lights are on and my speedometer only works when I get up to about 30 to 35 mph, could it be the speed sensor and if it is where is it?

I have a 4.7 v8 dakota and my speed sensor is located on top of my dif im not sure if yours would be similar but check it out any way its the only thing on top of the diff it sticks out almost like a 02 sensor