Ok so attached is a picture of what I think is where the rear main seal "leaks" for folks. I have had seepage where the "half circle" is in the pictures attached and along that seem..(its cleaned in the pic). it doesn't drip, but gets close... Im not super worried about it to be honest but I want to know if that is in fact where the rear main "seal" is at.... additionally... what in the hell is the open section above this? is it supposed to be "open" and if so why? Thanks and sorry for the silly dumb-a$$ question. Thanks y'all!