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How to wire a factory square tach from a 69 roadrunner

moparjohnny

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I have the harness,but no instructions on what goes where? Thanks

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THE TAC. DID NOT COME WITH THE CAR
 
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If you want to make the installation look correct, the signal wire (gray) goes through the firewall to the RT of the bulkhead connector as you are facing the radiator. There are some dimples in this area.
 
If you want to make the installation look correct, the signal wire (gray) goes through the firewall to the RT of the bulkhead connector as you are facing the radiator. There are some dimples in this area.


X2. If you bought the engine side harness kit, the grommet should be on the grey wire and ready to go.
 
I added the tach to my 69 Roadrunner and there was a little rubber plug in the hole where the wire would have went thru if factory installed but the new harness had the connector on it and would not fit thru that small hole,used a varibit and drilled out till the grommet on the harness fit.
 
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