My wifes 98 has a bd tq convertor and valve body. After i put the 370's in, I was playing pretty hard with it. Now it will surge or vibrate a little when the torque convertor locks up in OD. I took it in to have the bands adjusted, but it didnt seem to help. It almost feels like a u-joint is going out. I looked but did not see one going bad. Any help. One more thing, when you give it more throttle, it goes away. Then it comes back when you let off. Driving at 70 you cant feel it. Only between 45-60. Anyone?