a518 Vibration

Just wanted to put this thread to bed. I took it to a mechanic who specializes in older hot rods and he basically confirmed that it was a balance issue between the motor/TC. I tried to look up the specs for my motor and even talked to the machinist who did all the machine work to the block and rotating assembly. Keep in mind this was about 5+ years ago and this guy is constantly building motors. He remembered the guy who owned my motor before me and somewhat remembered the motor, but couldn't give me the specs I needed. SO.

I took a chance and chiseled off the butterfly weight on the TC and low and behold the vibration entirely went away. The right way would be just to get a new TC, but I really didn't want to pull the trans another time. I will put some miles on her and see how it feels. I will probably purchase a neutral balance TC in the near future. Right now it's just nice to get some cruise time. Thanks again to all who contributed to this thread. It's much appreciated!

Grant