What size wheel axle sets do I need for a recently purchased Bachmann Train N Scale Orange box car with a Rio Grande on it? It is in the Super Chief Set.
I have tried to figure it out........too complicated.   

My box car flew across the room when I had a collision  and one of the wheel sets popped out and I can't find it.
Thanks for  your help. 

I just received my Bachmann N scale Durango Silverton set in the mail yesterday. Today I unpacked it and put it on the track and it won't run. I have two other Bachmann N scale trains the Thunder Valley and the Chief......they both work fine on the track so it isn't a problem with the track. They are also new so I just put the Durango Silverton on that track and when it wouldn't run I put the other trains on it and they run fine.

Oh my this must be a faulty train. I can return it to Omni Models but what a hassle! I noticed if I take my finger and try to move the wheels on the engine they dont move. Are they tied down in some way? There are little plastic things there but I am afraid to break anything off. There is no info about them being tied down or anything in the instruction manuals. I assume there is nothing to remove so they will turn?

So I guess should I just return it? This is sad. Don't they test these before packing them? Just wondering if I am doing something wrong. anyone got any suggestions?
Cheryl