whats wrong with my transmission or torque converter?

I'm sorry to say that noises and vibrations are almost impossible to suggest resolution for in this forum. The best bet is to go on a road test with a good technician near you who can at least point you in the right direction. Often times, this can be done without initial charge, so I would definitely call someone local to you and set up a time for a visit. Here is a link to some folks near you: http://repairpal.com/dodge-within-10-miles-of-fredericksburg-virginia-22401