Tach Harness (In Dash Tach to Coil)
Reproduction of the “In Dash” Tach Harness to Ignition Coil Harness used on 1970 – 1972 GS, GSX & Skylark
This wire runs from the inside of the firewall to the Ignition Coil. The Black end plugs into the reminder of the wiring in your Factory Dash Harness. (GS/GSX)
Source – Lectric Limited
Please Note: This is only 1/2 of the Tach Harness used by Buick. The other half is factory wired into your GS/GSX Dash Harness.
IF you are installing this into a Skylark you’ll need to add about 20″ of wiring to complete the connection.
The Photo below shows the factory Tach Grommet location. (Red Circle)
This Factory Hole is “Kitty Corner” of the Fuse Block hole and typically only found on actual GS Cars.
Note: We use & sell Lectric Limited Products because they’re Made in the USA using Factory GM Blue Prints!