Built by ACF from 1940-1953, the 70-Ton Hart Ballast Cars were formally known as "Hart Selective Service Ballast Cars".

Due to the use of specially-designed doors which allowed the lading to be discharged one of three ways: to the center of the rails, to the center and sides of the rails, or to the side of the rails only.

Features:

- Die Cast Couplers
- 70-ton Friction Bearing Trucks
- Accumate Offset Shank Couplers
- Accurate painting and printing
- Fully detailed interior, including cross-bracing & side stiffeners

Six Road Numbers