I'm new to your site. Bought my son a 1989 formula 350. Prior owner swapped went from a automatic to a 86 borgwarner t5. Can you tell me what I need to get the speedometer to work? It is not the digital dash.
thanks,
Butch

 

Speedo setup is the same and requires nothing special. Just need to make sure your speed sensor is hooked up and has the correct gear for your rear diff ratio. If still not working then you have a little troubleshooting to do.