I think I fixed problem #4, it's what I suspected a bad rear engine mount, replaced it and she's solid as a rock. Also my brother in law the tire man, looked down there and suggested that I may not have had the lug nuts torqued down enough,(like most tires don't do). Causing the rotors to move just enough when the engin engages to bump the studs, making my noise. Problem #3 not a main seal at this point it's looking like just a leaky oil pan gasket, no oil anywhere near the crankshaft pulley but all around the top of the oilpan just behing it.