Document jy4DrwRbKBvJMxqQKaOJovXVN

Dana Corporation Page 121 of 176 The weighted average assumptions used in the measurement of other postretirement benefit obligations are as follows: 2003 2002 2001 Discount rate Initial weighted health care costs trend rate Ultimate health care costs trend rate Years to ultimate 6.24% 11.81% 5.00% 10 6.75% 12.30% 5.00% 10 7.50% 8.10% 5.00% 9 62 http://www.sec.gov/Archives/edgar/data/26780/000095015204001384/105571ael0vk.htm 8/1/2004