Make sure the cast aluminum seal assembly and adapter cannot be used instead of the factory integrated rear seal on the crankshaft. Look carefully for any blemishes on the surface where the seal will go. Thoroughly clear the gasket surface and put some engine oil inside the seal's inner diameter so the seal curls evenly back toward the engine side of the crankshaft. Put special tool 6926 onto the crankshaft and, being careful, slide the seal onto it. As soon as the seal is in position, do up the seal retaining bolts only finger tight. One way to stop oil leaks at sealing joints is to attach the Special Tools 8225 to the pan rail using fasteners, so that the "2.7L" stamp is pointing at the cylinder block and the seal flange sits next to it. Always keep squeezing the seal assembly with Special Tool 8225, tighten the screws on the seal assembly to 12 Nm (105 in. lbs.) and then release the special tool. Attach the oil pan, flex plate, backing plate and bolts before you place in the transmission. Following that, fit the retaining bolts and splash shield to the lower engine compartment, lower the car, add oil, link the negative battery cable and fire up the motor to check for spills.