Hyundai 21421-2B020 Oil Seal

First, take out the transaxle; next, you have to take out the flywheel/driveplate. Remove the Crankshaft Seal from the rear of the engine with the aid of a seal puller or a screwdriver in such a manner that one does not gouge or paint the crankshaft or the seal slot. Raise the block and clean the seal bore with a shop towel and make sure that there is no dirt or oil in it. Apply a little grease on the OD of the seal then slide it over the end of the crankshaft, making sure the lip is pointing toward the engine. If possible, with the separation vessel oriented the opposite from the original seal position, use a seal installment tool to press the new seal back into this location with the understanding that a small oil drain pipe in the separator must be at the bottom. In case the proper installation tool cannot be applied, then the use of a large socket will suffice in order to drive the new seal in such a manner that it will be parallel to the edge of the engine block. Finally, bolt on the flywheel/drive plate and then the transaxle.