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Old 10-24-2018, 11:08 PM   #1
Llay R. Rac
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Join Date: Jul 2016
Location: Arizona
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what this hole for?

I took the rear bumper off my '65 suburban to paint it and install a bumper to body seal i am making.
I found these holes on both sides, plugged with a gray/silver plastic plug, the same as those that plug the holes in the side support where hinges would be if my sub with end gates was a barn door style.
I have owned this truck since 1969, i dont remember drilling these holes, but i also havent seen or heard anything about them either on pickups or suburbans. thats the plug sitting on the ledge above the hole.
so i assume they are factory, does anyone know?Name:  DSCF4086c.jpg
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Old 10-24-2018, 11:50 PM   #2
Captainfab
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Re: what this hole for?

Could it be an access hole to be able to clean out the boxed in rear quarters similar to what the rocker panels have?
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Old 10-24-2018, 11:52 PM   #3
franken
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Re: what this hole for?

Not likely in AZ but rustproofing?
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Old 10-24-2018, 11:56 PM   #4
Getter-Done
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Re: what this hole for?

It could be an aligning hole for assembly in the factory.
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