Can someone tell me about this body hole cover? 1971 Challenger

[Greenmonster]

Can someone please tell me what this metal cover/plug is? They are on a 1971 Challenger I am restoring. There are 2 of them under the rear seat being held in with a tab on the bottom and screw on the opposite side on top. Why does this body hole not just use a rubber plug? Were these holes special for something? Thank you

https://drive.google.com/a/worcester.edu/file/d/0B_dyeR-tS5HAcVZHMFdoS1c3R2c/view?usp=sharing
https://drive.google.com/a/worcester.edu/file/d/0B_dyeR-tS5HAR3djaW9wTTVCTGc/view?usp=sharing

[anlauto]

I always figured they were just drain plugs

[Greenmonster]

Sorry, forgot to share it public. The links should work now.

['Cuda Hunter]

I would love to hear what those are actually for.

 

[AARTA340]

Now you went and done it, you got most of us stumped. LOL  I have always wondered that as well, but did not think of asking.   

Welcome to the sight and the good question.

[YellowThumper]

My guess is (much like on another thread I posted) that they are either tooling alignment holes during forming process or even post process inspection holes. As in after forming they are used as a sight hole for alignment points.

Or just a Freeze plug. Lol

Mike

[fc7vw9]

I was told once by a "LA Line worker" those holes received the metal plugs because they are directly above the resignators.