Chronic leak 8.75

Mine has leaked since I got it years ago, always a quarter size puddle after about a month in storage. I have tried RTV, new gasket and even a different carrier, still got the drip. So today, I pulled it and ground the old weld down to bout nothing and hit it again with my MIG (flux, i know...). dont know where this leak is but I hit the seam and the bolt ring for a few inches. I even ran a bead on the inside which showed a large seam from the original welding. Does anyone else have a leaker that they fixed? Or where it comes from, like maybe higher up as in the yoke? Doesnt seem greasy past the gasket. Thanks