What are these holes for?

[Toad455]

I took a ton of pics before disassembly but I don't see what these holes were for. I have all the rest of them accounted for but these four are a mystery so far. It's on a 78 C10 with factory AC. Anyone know what they are for? I'm sure they will come into play during assembly but I want to know since I'm getting the cab/firewall ready to paint. Thanks.

 

[legopnuematic]

Your pictures didn't attach.

 

[Toad455]

Thanks, I'll try again

 

[Edelbrock]

Based on the title, I was half expecting to see a risqué picture of his new girlfriend.

 

[legopnuematic]

The one under the large hole for the blower motor wiring is for the jute insulation, for a push in rubber retainer

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