AD firewall question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**8man** · 06-17-2018, 08:39 AM

I've started slicking up the firewall. Thought I'd do all the holes and then start over with new ones as needed, but

IMG_1937 by Robert Moorman, on Flickr

I have read that someone used the two holes on the riders side for AC hoses. I closed up one, but left the other one after I thought about what I had read. Should I close up the other hole?

Then on the driver's side, there are 4 holes at the top of the firewall, they are indented. Are these needed? I bought the truck dissembled so I don't know what they were for. Fill them or leave them? I'm now working on the larger holes, so they will all go away for now.

IMG_1938 by Robert Moorman, on Flickr

06-17-2018, 08:39 AM	#1
8man Senior Member Join Date: Sep 2017 Location: Bryan, Texas Posts: 2,377	AD firewall question I've started slicking up the firewall. Thought I'd do all the holes and then start over with new ones as needed, but IMG_1937 by Robert Moorman, on Flickr I have read that someone used the two holes on the riders side for AC hoses. I closed up one, but left the other one after I thought about what I had read. Should I close up the other hole? Then on the driver's side, there are 4 holes at the top of the firewall, they are indented. Are these needed? I bought the truck dissembled so I don't know what they were for. Fill them or leave them? I'm now working on the larger holes, so they will all go away for now. IMG_1938 by Robert Moorman, on Flickr



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