American Axle & Manufacturing's (AAM) net sales for three months ended 30 September was up 16.77% to US$820.8m compared with $702.9m in 2012. Its operating income improved drastically to $67.5m compared to $30.1m in 2012. Its income before income taxes amounted to $37.7m in the period compared to the loss before income taxes of $7.3m in 2012.