70 Swinger Floor pan install

Welcome to FABO. Perhaps you could show us a pic of the part in another position, like out on the shop floor, so we can see the shape of it overall. Something doesn't look right.
P.S. 4 speed? Yellow? what have you got there? We need pics!
Well, the mysterie is solved. I was shipped the wrong part. I should have the new pan by Monday

It's a numbers matching 1970 Dart Swinger 340 4 speed. FY1 flat black hood treatment with dual scoops and ofcourse the scat pack rear stripe. It's actually my high school car I bought back in 1987. I drove it for 2 years then had to sell it when I went into the Navy. Fast forward to 2008 when I was able to buy it back. It sat long enough and is now getting some much needed attention.8981.jpeg