As of February 2018, the AAR Equipment Engineering Committee has determined that the Endurance 325™ friction draft gear has successfully met all of the requirements of M-901E and is now fully approved with authorization for unlimited application.
The Endurance 325 provides protection, performance and durability in one lightweight package. It offers 3-1/4" of travel in both the buff and draft direction and delivers 80-pound weight savings over comparable 901E gears.
To learn more, please visit https://www.amstedrail.