Does anyone have a dent free oil pan from a 1987-1990, 5.0? I am adding a DSS main support and it will not work with the 1991 up pans without denting it up. The low spot in the pan changed from a flat bottom to a slope in 1991. I picked up a flat one from a friend and it clears the girdle but it does not have the low oil level sending unit hole. I guess it is from an earlier 5.0. I could probably make it work but would prefer the right pan. Thanks!