Rev Richie posted:
Hey John... This seems to be a common problem on 3rd Rail Coaches. You can replace them with Weaver passenger trucks or glue a piece of plastic to the coupler knuckle to prevent them from slipping apart.
Maybe glueing a piece of black plastic underneath the knuckle, thus it would be out of sight.
The guys at 3rd Rail were not very helpful and would not replace the trucks.
So, you saying that the couplers are truck mounted? Virtually all the Sunset/3rd Rail/Golden Gate Depot passenger cars I owned, had the coupler assemblies mounted on the underside of the carbodies. Thus, it was pretty easy to remove them and up-grade to Kadee couplers.