Place to pass wiring through firewall without drilling metal?

[Ruger_556]

I drilled a hole in the passenger side kind of down and to the left of the heater core

 

[SCOTTYINWV]

It's about the size of a quarter.

See the yellow plug in the center of the picture

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And you can see it glowing in the pic when i push the floor down here.

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[Blind]

If your truck is an automatic, there is a knock-out on the firewall that would be for the slave cylinder/clutch rod that can be used, with a grommet of course.

That's what i did for the 4 gauge feed wire...

Where about is that located, either of you have a picture?

 

[4thesporty]

Here you go:

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For reference, that is the hydrobooster on the left side of the picture.

 

[lifted97chevy]

I run mine in through next to the steering column theres a gromit and everything works great ill post a pic later


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[dagen_1]

Check under the heater core hoses on the passenger side of the fire wall. I have a yellow plug there visible if i pull back my rubber flooring.

^^^this if you can route on the passenger side. i did this for my air ride wiring.