Speedometer power plug

[85olvera]

I need help with 85 k10 truck. Just bought it, but the speed guage doesn't work. There is a cable in the back that hooks up to it. Im not getting any voltage on the pink/black wire. Where should the power come from?

 

[yevgenievich]

Spedo should be cable driven for 85.

 

[85olvera]

Then Possible bad cable?

 

[yevgenievich]

Disconnect on the transfer case and turn the cable while watching the spedo. Also can disconnect at the spedo and verify rotation

 

[85olvera]

Found the problem at transfer case the cable is broken going into the drive gear. Going to change the cable, also would like to change the drive gear. I would like to find out what teeth count would be the correct one. Since it has a 3" lift and has a set of 33s.