I've heard you should never answer a question with a question. But...
Are your couplers truck-mounted or body-mounted? When dealing with passenger cars, you have the additional problems of getting around tight curves and maintaining a desireable separation between the cars. Kadee also makes long-shank and short-shank couplers to alter the spacing between the cars.
It takes an iron man to play with a toy iron horse.
Kadee #5 for rolling stock. Or #58 for scale couplers.
http://www.kadee.com/conv/holist.pdf
Rotor
Jake: How often does the train go by? Elwood: So often you won't even notice ...
GROUP I guess I should have been a little more specific these two kits are "rolling stock!
one is a standard santa fe 70' pullman car the other is a standard 70' santafe R.P.O. sorry for not being specific before.
george.