Kits are designed to take Microtrains® 1037 trucks/couplers
or the BLMA® 100 ton trucks with Microtrains® 1015 body mount coupler
These low riding cars look even better using Fox Valley Models® 28" wheels
Our grateful thanks go to Jim Panza for his help with these details sent privately but now published in Panza, J., Dawson, R., and Sellberg, R., 2018. The TTX Story Allentown PA, Pennsylvania Railroad Technical and Historical Society.