I had not seen this thread before, but having just received new N&W bunk cars, tool car, and kitchen car the title struck me as interesting. Those cars force derailments with some of my other cars (because the couplers don't mate well) on tight S curves, don't couple well to other cars, etc. just as everyone describes. They also derail on traditional O72 switches that don't cause a problem for any of my other rolling stock or locomotives (are the flanges also shallower and/or the center rail pickup rollers don't flex up as far thus picking the car up a bit?). I had not bought new rolling stock (just "new to me" used stuff) for many years, and now I doubt I will buy more because of these trucks.
That said, and I'm sure someone has covered this, but is there a source of the "old" style trucks that one could use to replace the new ones?
