Pulling the oil pan would allow the main and rod bearings to be inspected. Mark and keep the bearing caps in order if you remove them. Overfilling the oil can allow the crankshaft to strike the oil causing it to foam. The foam will get pumped through instead of an oil that has not been aerated.

Keep us posted and good luck!!!

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer