I just got my car back today, I had my 700R4 completly rebuilt with a shift kit and a brand new TCI 2100 stall converter. Everything seems pretty good except I'm getting some vibrations. If I rev the motor in park it vibrates and when I'm driving and I put my foot in it and it down shifts it starts to vibrate alot once the rpm's start climbing. I would say the vibrations start above 2800 rpms. There is no vibrations when I'm just crusing around and the rpms are low. Do you think this is related to the converter or maybe the tranny mount, or something else. Any help is greatly appreciated. Thanks.