What is this?

[CK5]

Pulled one of these from inside each torsion box, what is it? Bracket from seat or seat belt mount?

 

[CK5]

No, not my shoe! lol

 

[GWeakland620]

 

[Greg72]

Is it perfectly flat? I see a circular mark indicating either a washer or flange nut.

What size bolt hole? Compare it to the seat bolt holes... maybe a reinforcing plate for the underside... maybe an old rollcage brace? Can you see any signs of exposed metal on the underside of the floor if you peek in the torsion box with a flashlight / mirror?

Compare that hole spacing to everything you can find on the top side of the floor.... seat bracket holes, etc. that might give clues.

-G

 

[CK5]

It has a slight curve in the middle. There were 2 flat washers and 2 regular nuts as well. I will look for anything with the same hole spacing tomorrow.

 

[CK5]

It ended up being an old roll cage bottom plate.