Had my ABS light kick on and i have my uncle who works for a ford dealership plug in the computer and it said that the error was the right front speed sensor. he told me to get one and we can install there at the shop. question is i'm looking for it and they either:

Sell just the sensor that goes on the by the braking system or the whole wiring assembly w/ the sensor. [B]question[B] do i need the whole assembly or can i just get by the with just the sensor.

Also no where can i find like a actual wiring plan with view points to what the hell it looks like and where its mounted. some say on the brake some say on the tranny

reason why im asking is cuz there is a pick in pull in my town and i wanna just pick it off a new wrecked truck on the cheap.

Any help would be appreciated.

thanks