Atlas/Rivarossi Passenger car six axle trucks

Does anyone know if there are replacement six axle trucks available for the atlas / rivarossi passenger cars. I have one that needs to be replaced. I also would like to know how to get them off. There is a round bolster that they are pinned into inside the car. The head of the pin is not slotted like the concor ones. I need to know if this is threaded or just pulls apart.

 

Micro-Trains Commonwealth trucks are pretty much the same deal as the old Rivarossi Commonwealth trucks.

http://www.micro-trains.com/trucksCommonwealth6.php

-Mark

 

I had used the very exact truck Mark mentioned above and was very happy with them. I can't remember exactly how I connected them to the car but it was either with the original CC pin or whatever came with the truck from MT. I know I did not do anything special with them to get them mounted.

I also just put a silver set under the Kato Business Car The Round Up to make it look more like the prototype. They look good under there and lift the car just high enough to give it the flavor of its heavyweight origins.