From what I've researched I believe it is. I started this project after it's been tore apart for a few years so I can't tell you too much about it. Do you have a picture of the shield by chance?
I'm working on a 71 cuda with the Evap canister in the trunk on the passenger side. There's 4 or 5 fuel lines coming off of the canister through the bottom of the trunk and into the rear wheel well area. There was a rotted out shield protecting these lines and it's grown legs and disappeared so...