1970 Duster project in Sweden

I’d use RTV. And tighten carefully as not to squeeze the gasket out. On other gaskets like the one piece rubber/steel inside, there are “O” rings of brass/steel around the bolt holes. This can just be torqued to specs and forgotten about. Though some RTV in the corners of the pan are needed.
Thanks. I will probably get one of those gaskets and use some rtv when installing it. I dont remember what gasket is on there now, but I do remember being thorough when installing the pan. It was nice and straight and everything was clean and nice. The leak is at the front of the pan. I can see it so I'm sure it is the pan.