Well, all was going well with the 502, until i noticed a drop of oil on my oil pan. Closer inspection shows a possible rear main leak. My question is this.....I had to have the oil pan reworked around the crossmember in order to clear the crossmember. I called GM and asked if this would affect the already very limited warranty, and he told me it was a grey area, and they would have to look at it first, being that the 2 are so close in proximity. Does anyone know much about this? any suggestions? Thanx in advance.