Oil Pressure Gauge install questions

Richard Sweet said

I want to replace my oil pressure warning light with an electrical guage on my '65 273 also. Looks similar to the 318. I searched in the tech forum but got no hits, so I looked here. Glad to find this thread. Guess I need a new sending unit and guage, but I assume that I can use the old wire. Thanks, Richard Sweet.

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Maybe think about running its own wire from the sender through the firewall to the gauge. This would eliminate having to pull the gauge cluster and try to splice into the factory wire. Then you can always hook it up back to stock in case you decide to sell it and removing the new gauge will be easier and cleaner if a new buyer doesn't want it.

You will be more flexible if you change your mind in the future.