Boost/Tach Recalibration Svc

REPAIR SERVICE ONLY

DO NOT CUT THE WIRES TO THE TACH BOOST OR THERE WILL BE AN UPCHARGE OF $30!!!!!

1. REMOVE YOUR TACH MODULE FROM YOUR DASH

2. PUT IT IN A SECURE BOX

3. PUT A COPY OF YOUR ORDER SLIP IN THE BOX

4. SHIP IT TO US 

5. WE SERVICE IT 

6. WE SHIP IT BACK

This module is found on the analog dash panel, Grand National and T-Type 1984-1987 across from the FUEL gage, secured by two screws and a connector. Obsolete part is no longer available from GM. Typically, the display shows maximum RPM and boost at idle when they go out of calibration. Send us your defective Bargraph Boost/Tach module as shown in the image. We repair it and send it back better than before. One year warranty on our service.  

<> INSTALLATION
in PDF format