HO 60' Gunderson 7538 SD Boxcar BNSF #761534 (Boxcar Red, white, Wedge Logo)Details: In 2012, BNSF acquired close to 600 Gunderson 7538 High Capacity box cars. Four years later, TTX Corporation placed orders for a similar 7550 box car. At this time, they have over 4,000 cars in their fleet with more cars ordered. With a gross rail load capacity of 286,000, these cars can carry a wide variety of products such as paper and bulk items. While they look similar in appearance, the 7550 and 7538 have a few unique differences. The