1989 GMC Speedometer Wiring?

[83ZZ502_Jimmy]

I have looked everywhere on how to fix my speedometer in my 89 GMC. I am looking for a wiring diagram so I can figure this thing out.

Does anyone have one or access to one? Or does anyone know how they work, and how many wires are used?

Thank you for anything in advance!

Sincerely,
John

 

[daleearnhardt01]

Sweet new DD
Hope the 'Bu has a great remainder of its life with Larry... Ill miss the neutral drops, j-turns, etc

Congrats on the new job John

 

[83ZZ502_Jimmy]

Thanks! I'll be seeing you soon I imagine..

 

[daleearnhardt01]

Thanks! I'll be seeing you soon I imagine..

Tommorow