These types of models feature a single-piece rear Crankshaft Seal that is packed between the engine block and the lower main bearing cap assembly. This requires taking out the transmission as well as
Flywheel/drive plate for having it done. The screwdriver will remove this seal from the engine block, but be careful not to score the crankshaft surface. When there is damage at crankshaft then new seal will leak. Put tape around the lip of screwdriver blade to avoid damaging it. Take clean shop towel and carefully wipe off anything remaining on seal bore in block. Remove oil and dirt completely. Carefully place the seal over end of crankshaft after lubricating its lip with fresh engine oil. Make sure the lip of the seal points toward the engine. Normally, use a special tool designed for installation of this kind (available in most car parts shops) that should be applied on pressing back into places such new seals if necessary. Make sure that the new seals are driven squarely into their bores flush with rear face of engine block. Rest of job involves putting everything back together again according to removal process.