Eaton—Official Differential of the NMCA West Auto-X

The NMCA West welcomes Eaton as the Official Differential of the NMCA West Auto-X series. Eaton is a wide-ranging company that has been a manufacturer of top-quality reared parts for enthusiasts and a supplier to the OEMs for decades. The company has continued to develop its product lines to better serve both enthusiasts and manufacturers who are looking for better performance from their vehicles. For more information, visit

The NMCA West Auto-X is a six-event series that runs exclusively at the Auto Club Speedway in Fontana, California, in conjunction with the RacingByrds. The goal is to provide a safe and fun environment for auto enthusiasts to push themselves and their cars to the limits on a timed autocross course. For the serious competitors, there is the NMCA West Auto-X Championship points series and there are categories to fit a wide-range of vehicles from stock to highly modified.

The two-day events give awards and points to Compact, Compact Pro, Truck, Truck Pro, Classic Muscle, Classic Pro, Modern Muscle, Modern Pro, Sports Car, Sports Car Pro, and the all-new Super Car class. In addition to category awards, there are special prizes and recognition awards at every event. The family friendly atmosphere and unique racing format make it one of the most popular autocross series in the region. For more information, visit