I assume you mean replacing the trucks on the car, not the engines right??

Folks,  Sorry I am an HO'er   BUT my younger adopted brother (8 years old) got some N scale trains with some missing couplers.  I volunteered to fix then figuring a drive to the local hobby shop and I would be all set.  Well, then I learned they dont carry these older couplers, and I havent had much luck finding them online.   We are not interested in changing these over to the newer couplers since all his other equipment still has the older couplers.

Everything he's got is Bachmann.  I have a crane and tender set with the coupler missing from the crane,  a GP40, and a 4-8-4 which is missing the coupler from the tender.  Everything is missing the clip, spring, and coupler.  I found this in the parts section:

http://store.bachmanntrains.com/index.php?_a=viewProd&productId=9


Are these the parts I need, and I assume this is a complete pair???  ANy help would be great! He's just gotten into trains, and seems to really love them with a little layout in his room and everything!

Thanks in advance,
Mike

On a followup I remove the decoder, and am now running it on 00 no decoder on my digitrax.  The engine runs great!!

So is it the decoder or does something need cut?  I suspect the capacitor needs cut but I dont know what to cut?

Folks,

I just got one of these chinese 2-8-2's, and I apparently got an early run which is not dcc equipped. 

I installed a digitrax decoder, but am getting erractic behavior.  It is jerky and stops for no apparent reason then wont start back up until I shut off track power!

Any ideas?  I wonder if I didnt need to cut some capacitors???

Mike Schock