Ok... I am working on my gf's truck:

2000 F-150 Supercab 4x4
4r70w
5.4l

I am trying to install this superlift truspeed correction module, but cant seem to find the "speed signal wire" Superlift's directions say it is the dark blue/yellow striped wire in the tranny loom. There is no such wire. We tried the dark blue/lt green wire... didnt work, now I have the "O/D OFF" light blinking at me... please help!!!!

Jason

 

Have you solved your problem yet? Did you try dealing directly with Superlift? I was thinking of going with a taller tire & seriously thinking of the Truespeed unit. I hope you were able to find the correct wire and please let me know how you make out. Thank you.