early 64-69 318 pan has (6) holes for front seal. '70 up (318) has (2) holes (one bigger than the other) & both ends take the same gasket. If you have the correct gaskets & the broken nubs are interfering you might cut them flush so the gasket will fit close then use some killer gasket cement like "the right stuff". More info, what do you have/whats going on

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