I have a nice new Bachmann Santa Fe.It has rapido couplers on it and I would really like to swtch to micro couplers so I can pull the rolling stock I have.Can this be done and where do I get the correct ones to fit? ???
Easiest way to do it is to make a transition car. Micro couplers on one end and rapido on the other.
It depends on the actual loco how easy or hard it is. Bachmann puts Santa Fe on many different loco's.
Check here for a list of conversions and what you need to do to perform them.
http://www.micro-trains.com/ConversionsN.php