Anybody out there done this before? It doesn't seem too hard according to the shop manual. No need to lift engine. Drop the pan. Remove rear main cap. Original seal will be rope. New replacement seals are split rubber. Removing old and installing new seal above the crankshaft seems tricky. Is it? Book says to rotate the crankshaft during removal and installation. Should this be done with starter or a socket on the front? Is there a difference in brands for new seals? Best place to get new seal?