I am trying to get my spdo to work correctly.
I swapped my auto to a 5-speed. The spdo is cable driven. I don't know what the gear is in the tailhousing. I was thinking of using a electric sending unit and a Dakota Digital box with a new gauge cluster that has a electronic spdo. I think if I get an electrical signal from the tranny I can use the Dakota box to input the correct signal into the spdo. I will use a buffer box also. Has anyone tried this? Will it work? The car is an 85 T/A with a 350.

 

Good luck, Im still working on mine. I took it to a trans shop to have them do it and they charged me 150.00 and couldnt even fix it, pos. Check out the other post here that might give you a little info on it.

Speedometers are