The one-piece rear Crankshaft Seal is pressed into a bore machined into the rear main bearing cap and engine block. Begin by removing the trans axle, clutch components if equipped, and the
Flywheel or drive plate. Ensure the Crankshaft Seal is installed flush with the outer surface of the block, and carefully pry out the old seal using a 3/16-inch flat blade screwdriver, taking care not to nick or scratch the crankshaft or seal bore. To prevent an oil leak after installing the new seal, avoid scratching or damaging the crankshaft sealing surface or the bore in the engine block. Clean the crankshaft and seal bore thoroughly, degreasing these areas with a rag soaked in lacquer thinner or acetone, and do not lubricate the lip or outer diameter of the new seal as it must be installed as it comes from the manufacturer. Position the new seal onto the crankshaft, ensuring that if marked, the words THIS SIDE OUT face out toward the rear of the engine. Using an appropriately sized driver and pilot tool, drive the seal into the cylinder block until it is flush with the outer surface; avoid driving it past flush to prevent an oil leak. The remainder of the installation follows the reverse order of removal.