How did you get your gauge wiring through the firewall?

oz

Founding Member
Jun 29, 2000
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Plymouth, MI
Greetings,
I am about to route my mechanical oil pressure and water temperature gauges on my '69 and am trying to find a place to pass the water temp sending unit and the small oil pressure tube through on the firewall so that I don't have to drill a hole.

Can anyone tell me how they did theirs and suggest a hole to use to avoid cutting a new one?

Thanks!!!
 
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go ahead

Go ahead and drill the hole, find a rubber gromet at the parts store and drill the correct size for it. I'd suggest a larger hole, because you will run other stuff through there later (trust me). Just be sure to find a safe spot.
 
Go ahead and drill the hole, find a rubber gromet at the parts store and drill the correct size for it. I'd suggest a larger hole, because you will run other stuff through there later (trust me). Just be sure to find a safe spot.

Agreed x3

And that's good advice about putting in a larger grommet than needed, as you WILL need it eventually.