1. Preparation:
* Disconnect the battery: This is crucial to prevent electrical shorts and damage.
* Gather tools: You'll need a variety of screwdrivers (Phillips and flathead), possibly sockets and wrenches, depending on your dashboard configuration, and possibly pliers. A shop manual will give you a precise list.
* Obtain a replacement speedometer: Ensure you get the correct one for your year and model CJ5. You might need the part number from your old unit or the vehicle's identification information. Consider whether you need a rebuilt unit or a new aftermarket replacement.
* Protect your work area: Lay down a clean cloth or mat to avoid scratching your dashboard.
2. Dashboard Removal (most challenging part):
* Access the speedometer: This involves removing parts of the dashboard. The specifics vary widely depending on the dashboard trim and options on your CJ5. The repair manual is absolutely essential here. You might need to remove the steering wheel, the bezel surrounding the speedometer, and potentially other instrument panel components.
* Carefully document your process: Take photos or videos as you disassemble the dashboard. This will be invaluable when you reassemble it. Label wires as you disconnect them if necessary.
3. Speedometer Removal:
* Disconnect the speedometer cable: This is usually a simple clamp or nut holding the cable to the back of the speedometer.
* Disconnect electrical connections (if any): Some speedometers have illumination lights or other electrical components. Disconnect these carefully and note their locations.
* Remove the speedometer from the dashboard: This usually involves unclipping it or unscrewing retaining screws.
4. Speedometer Installation:
* Install the new speedometer: Reverse the removal process. Make sure it's securely mounted.
* Reconnect the speedometer cable: Ensure it's properly seated and clamped.
* Reconnect electrical connections (if any): Double-check the connections.
* Reassemble the dashboard: Refer to your photos or videos to reassemble the dashboard correctly. Take your time and be careful not to force anything.
5. Testing:
* Reconnect the battery:
* Test the speedometer: Start the Jeep and check if the speedometer functions correctly. If not, double-check all connections and wiring. You may need a test drive to verify its accuracy.
Important Considerations:
* Cable condition: Inspect the speedometer cable for damage before reinstalling. A worn or damaged cable can cause inaccurate readings or prevent the speedometer from working altogether. Replacement of the cable is often recommended during this process.
* Calibration: Some aftermarket speedometers might require calibration to match your vehicle's specifications.
* Electrical Issues: If your old speedometer malfunctioned due to electrical problems, address those before installing the new one to prevent damaging the replacement.
This is a general guide. Using a 1967 CJ5 Jeep repair manual is absolutely critical. The specifics of dashboard removal and speedometer access will vary significantly depending on the exact model and trim level of your Jeep. If you're not comfortable working with automotive electrical systems or mechanical components, consider taking your Jeep to a qualified mechanic. Attempting this without the proper knowledge and tools could result in damage to your vehicle.
