Odd metal floor pan plugs

[Mrbill426]

I am just wondering about the significance of these metal floor pan plugs; there are only two located one on each side on the rear pan.  What are they for? 

[Chryco Psycho]

all of them have that pair of metal plugs , why I am not sure

[anlauto]

The 71 Challenger I'm working on has four. I first I thought it had something to do with the heat of the exhaust, but their location makes no sense

[Mrbill426]

Odd, and they are obviously made to be removed if necessary like the shock plugs in the trunk 

The 71 Challenger I'm working on has four. I first I thought it had something to do with the heat of the exhaust, but their location makes no sense

[Burdar]

This question was asked recently.(not sure if it was on here or on Moparts)  Someone said that the metal plugs were used where the exhaust heat could damage the rubber plugs.  On my 73, the plugs are right above were the factory resonators sit.  The muffler has a heat shield but the resonator does not.  A rubber plug would deteriorate with the heat.  That's the best explanation I've seen and it makes sense.

[71vert340]

This question was asked recently.(not sure if it was on here or on Moparts)  Someone said that the metal plugs were used where the exhaust heat could damage the rubber plugs.  On my 73, the plugs are right above were the factory resonators sit.  The muffler has a heat shield but the resonator does not.  A rubber plug would deteriorate with the heat.  That's the best explanation I've seen and it makes sense.

Burdar, I believe you are correct. I removed mine last year  to clean them up and, IIRC, I looked down through the hole and I was looking at the top of the resonator. A rubber floor plug would not last there.
Terry

[cuda hunter]

My 74 charger has those same plugs as well.   Just sayin.