Gasket

[BoatMan]

I know there used to be a gasket between the brake booster bracket and firewall. Is that something I can find online or is there another material I can get and cut to fit?

Have the new bracket that matches up with a booster. Image is the old one.

 

[detmatt]

If anybody will have it, it’ll be these guys.
Mopar - Individual Gaskets - Brake Booster / Master Cylinder Gaskets - Detroit Muscle Technologies, LLC