Took the car in today for the rear diff leak. There is not an actual tsb out for this right now. Figured something interesting out with the tech. We figure it's the heat from the exhaust that's actually melting the rtv and causing the leak. You can see the areas that have gotten hot and melted it. It would be interesting to see if everybody that has the problem has and aftermarket cb. We compared it to a stocker and it's definately 1/4 to a 1/2 inch closer to the pumkin. So, he's gonna fabricate a heat shield and coat it with some reflective paint on the side facing the exhaust and we're gonna see if this solves the problem. Anyone leaking with the stock cb?? Anyway, this is perhaps a new way to solve a old problem.