Ok, i'll go with the same coupler (Item #78025-Center shank medium).

On another matter, can you or anyone please tell me the proper order of model train sizes starting from the smallest to the largest?

I went to the Bachmann 2014 catalog and on page 121, I found the following choices:
EZ Mate Mark II Magnetic Knuckle Couplers with metal coil spring:
Item #
78021.   Over shank-long.
78022.   Over shank-Medium.
78024-   Center shank-long.
78025.   Center shank-Medium.
78026.   Center shank-short.
78027    Unger shank-long.
78028.   Under shank-Medium.
78029.   Under shank-short.
These all look like the couplers I already have but mine are black and the catalog ones are copper colored.
Also, a Ne coupler:
Item #
78035    New EZ Mate Mark II - Fits into standard European coupler pockets. Do I have the European version?

Most of these couplers come in packet form containing several couplers so I ant to make sure I get the correct Item # above for my train (The Liberty Bell Model).
Mike

Got it. More of a common sense issue. It stands to reason, right?

Thanks so much. I'll get on the Bachmann web site and order some tonight. The height seems OK as the couplers (even with the metal stem that hangs down from it) do not touch anything as the train moves along.

Mike

Just plastic with a small metal stem shaped like a J hanging from each coupler.

I have the HO Liberty Bell Train. Yes they do look like a hand w/o the beer.

I have had quite a challenge trying to get the cars on my "Liberty Bell" train to couple together. They simply won't lock together? Laura at the office has twice tried to guide me through the process but I must be especially stupid because I still cannot get them hooked together? Is there a step-by-step guide available showing how to do this for dummies like myself? Are there easier couplers that can be used?

Mike Sherrod