Factory tach

[Hdmike444]

Hi all
I want to add a factory tach with the guages
My question is if I find a good used one can I use the aftermarket wiring harness opgi or the parts place sells? Or are they specifically for the aftermarket guage
I am not opposed to an aftermarket one but would rather get a real one
Thx mike

[chevymaher]

I just added the correct wires.

[Hdmike444]

I just added the correct wires.

So did you have a real tach or aftermarket?

[chevymaher]

I got the roll tach. It is a original.

https://i.postimg.cc/NGNhQgsm/IMAG1653_zps5edf4218.jpg