360 Balance Question

Aaron said
I get a vibration in the steering at 40mph and and at other speeds above that.
I think the 727 and 360 in my duster were split and now the external balance on the torque convertor is off. Is it possible the flex plate and convertor were not marked when they were removed and installed and now are in a different configuration?

No, the flexplate and converter will only go on one way, they are ever so slightly apart from lining up the holes, but will only fit one way.

I had a shop remove the 360 and 727 from my wrecked charger and put it into my duster. Well after lots time work, I have the car moving again (they just dropped the engine in for me, I did most everything else). They closed shop about 6 months ago and I cannot get ahold of them to find out what they did.

If the convertor balance weight is my problem, what can I do to fix this? Do I need to remove the tranny or engine (I currently lack the equipment to do the latter)?. Can I just un-bolt the converter and try it in a different position? Any information or details on how to fix this would be greatly appreciated.
Thank You
Aaron

You can check if you have a balanced converter or not. If you remove the inspection plate on the transmission and turn the motor/converter around you should see a couple (usually 2) small block weights on the converter. Inbetween the mounting pads likely. If you do not have the weights, you might be able to see what flexplate you have, likely there is just a stocker 4star flexplate in there, but B&M also makes a balanced flexplate so you can run a neutral balance converter (no weights). You might possibly (though unlikely) have something like that.

Assuming you've concluded that the vibration isnt a motor mount? trans mount? wheel balance? alignment? u-joint? etc etc?

-Mike