Gear selecter seal

I got my seal in place and put a deep socket over it. Then used a huge C clamp on top of the socket and on the pan to press the seal it. It didn't take much pressure and worked perfectly. It didn't scratch or dent the pan. I did the shift selector seal first. And then did the kickdown seal last. I kept a small pair of needle nose vise grips on it to keep it from dropping into the pan.