Originally Posted by
mightymaxIV
It sounds to me like your left steering brake is lose, there are several small bolts that use an allen wrench that hold that brake tight, They are hard to see and harder to get to, it sounds like they weren't properly tightened.
Pertaining to the transmission, it's difficult to say, the Admiral makes a lot of strange noises so the experience of the dealer and Argo will have to be the deciding factor there. Try tightening the bolts of the on the rotor and see if this solves your problem.
Those bolts also hold the left driven shaft to the transmission so if they are lose the chains will pop and sound as if they are trying to climb the sprocket.