I am building a model of one of the NKP/WLE 78000 series 70 ton hoppers in HO. The Spring 1993 issue of the NKHTS magazine contained an article on these cars. The text and NKP diagram I have state the trucks were ASF basic cast steel trucks with integral journal boxes. Based on the photo's in the article I think the trucks ASF A-3's but they may be A-3 ride control trucks. I can't tell the difference, and I think the only models available in HO are the Kato A-3 ride control trucks anyway. Can anyone confirm what trucks are on these cars? Thanks. Brian J Carlson P.E. Cheektowaga NY