AAM is a world leader in the manufacture , engineering , design and validation of driveline and drivetrain systems and related components and modules , chassis systems and metal-formed products for trucks , sport utility vehicles , passenger cars and crossover utility vehicles . In addition to locations in the United States ( Michigan , New York , Ohio and Indiana ) , AAM also has offices or facilities in Brazil , China , Germany , India , Japan , Luxembourg , Mexico , Poland , South Korea , Thailand and the United Kingdom .