On2 .. Grandt Line 3075-1 SR&RL On2 Archbar Trucks with no Wheelsets (1) Pr. - Brown Delrin to be used on PLW Passenger cars.
50 sets on order arriving soon .. Let me know if you would like any set aside for you
You may also want/need the MTL NWSL 37851-4 Wheelsets.
Made of Engineering Plastic to minimize breakage, there are enough parts for one freight car.
Updated 4-2-2018, 5-2-2018