1978 mercruiser 120 hp= I have been looking for this part circled in green forever, before i rig it up i was going to see if any of you all know where i can purchase this part from. It connects to the alternator
http://i297.photobucket.com/albums/mm229/dissturbbed/003_zpsea8e5ea3.jpg
1978 mercruiser gm 153 ci 120 hp= I am pulling the motor because the coupler went out due to poor alignment and since ill have the engine out might as well replace the seal. I have done many front seals on vehicles but not any rear main seals. The shop manual i have states how to replace it...