1895 - Springs and carriage wheels
1913 - Hot-wound coil springs and leaf springs
1963 - Hot-wound coil springs, torsion bars, stabilizer bars & leaf springs
1986 - Joint venture formed between Rockwell and Mitsubishi Steel Manufacturing to manufacture coil springs, stabilizer bars and torsion bars
1992 - opkinsville, Kentucky site begins operations for torsion bars
1993 - Hopkinsville facility expands operating capacity to include stabilizer bars
1997 - Rockwell spins off automotive division creating Meritor Automotive
2000 - Meritor Automotive and Arvin Industries consolidate creating ArvinMeritor. The Hopkinsville facility is expanded to include coil springs
2009 - Mitsubishi Steel Manufacturing purchases Meritor's interest in the joint venture, and the new company is renamed after it's renown brand, MSSC
2010 - Coil spring operations are added in Chatham, Ontario