Yes, CLW did an RS-3 Kit with AAR Type B Trucks and they also used those Trucks on the Alco FA-1/FA-2 Kits.
It seems during the 1970s there was a lot of copying of cast Brass parts between different 2-Rail O Scale companies. Copyright laws that applied to reproducing Brass parts were not enforced between O-Scale manufacturers as they struggled to keep up with the demand for Brass models in a variety of scales.
There also seems to have been many parts made by several company and then relabeled/sold with another Companies label. This way, smaller companies manufacturing efforts with smaller product runs were not bogged down re-making costly parts for Brass models like the RS-3 that had been sold by competitors for many years.
