Hi, anyone know where I can find replacement door sills? I see the front piece of the two part sill available everywhere, but I’m looking for the rear piece that curves up towards the back seat, right next to the seatbelt. Any help would be greatly appreciated!

 

Forum has been there before...

...might need fabrication, unless this is what you are looking for.

https://www.lmctruck.com/1973-91-che...body-supports#

 

No, I’m looking for the aluminum interior door sill, but thanks. In doing more research, looks like they aren’t reproduced and nearly impossible to find used.