727 vibration

408 swinger said
Since you refuse to tell us engine and car model, there were three engines that would be EXTERNAL balance. If your trans shop put in a "rebuilt" convertor, but didn't put the correct weighted one back in, it's gonna shake like a ****. Did the shop get the prop shaft installed correctly? Loose bolts/straps? Any vacuum lines disconnected? If it's a small block, did they let the distributor rest on firewall during repairs? Thus, cracking the cap or even bending the shaft?

If you read above its a 79 Chrysler 300, 360 motor all stock , with the original convertor with weight that was in the car since new, rebuilt after the first convertor that had a weight was vibrating also. I removed and installed the transmision twice now.. No vaccuum lines to transmission. Motor runs perfect.