I have done alot of searching and just want to make sure i understand this correctly.i have a 1992 chevy pickup 2wd 5speed manual with a 2004 5.3 with a 1999 pcm cable throttle body.I want to hook up the vss from the tranny to the pcm and then out from pcm to speedometer.The vss input on the pcm red connector is pin 20 vss low signal pin 21 vss high signal and pin 50 vss output.Does it matter what which vss wire from tranny goes to which pin 20 or 21?Which wire is the output from the drac box to the speedometer so i can connect the output from the pcm behind the glovebox?

Thanks Joe