Nice work!
My 70 has them too. There’s nothing in it. My guess is so the carpet rolls the same on both sides. IDKIt was built like that. There was no wiring on that side.
My 71 has them too for no reason.
So what was the original colour? It looks gold inside in the pictures.
Every b-body I’ve ever seen the floor of has had those on both sides…
Your scaring me Mark
Damn, it happened again. Just bought a 5th 70 that I just couldn't pass up. Another Challenger R/T S.E.I bought a 70 once also, then another and another, and another. Up to four 70's currently. Your project is coming along nicely.