During WW2, the US Army had a fleet of cars built by Pullman for the transport of troops across the country. These Pullman Troop Sleepers were built more like a box car than any passenger car and rode on special Allied Cushioned trucks. Post war many of these cars were sold off to railroads for various different uses. Some become Cabooses, some became MoW lodging to replace bunk cars that were built before 1900, and even still others became various express and baggage cars. One example of such was the Railway Express Agency conversions. All side windows were blanked over and the ends were blanked. The side doors were replaced with a standard 40ft reefer door assembly and ladders on the ends of the car. Up top, they added four ice hatches and a roof walk. The trucks were changed out from the troublesome Allied trucks to a more standard ASF freight truck design. The SLVS aquired a small fleet of thse cars in the early 70s as part of a joint purchase with the SLC, who bought standard REA express reefers. These cars were used first in lettuce shipping and later in potato service before being retired from an active role in 1997. Most of the cars were scrapped, sold, or used as storage sheds by 2000. A few of the cars have survived on the rails, usually running with MoW trains as tool cars. With the aquisition of the San Luis Rio Grande these cars life has been extended in this tool car service to serve the now expanded railroad.