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DIY - PCV Valve / Breather Hose Replacement (M156 E63)
#51
Hachiroku, the “rubber drive discs” I had referred to are those rubber discs located on each end of the Drive shaft connecting to the Tranny and the Diff. Also, being the “CrankCase” is the Engine, as you know the CrankShaft drives the Pistons, so you must drop the Transmission in order to repair the Rear Main Seal.