not a big deal if you don't have the rubber gasket. fyi you DO NOT have to touch any of the oil pan bolts except the 4 that go through the bottom of the timing cover. NAPA sells a gasket kit for this application that will come with two corners to replace thge corners of the oil pan gasket that will usually need to be replaced when doing this project. just use them and some black rtv on the corner where the block, timing cover, and oil pan meet. also if you want you can use a thin coat of rtv on the corner gaskets themselves if it will make you feel better.