The main difference between herself and Kolhberg:
Gilligan argues that for most women, progress toward moral maturity is marked by changes in the focus of caring, not by the development of the abstract, impersonal principles that Kohlberg proposes. . .
Gilligan admits, however, that both perspectives are valid, in fact complementary. She argues that "a shift in the focus of attention from concerns about justice to concerns about care changes the definition of what constitutes a moral problem, and leads the same situation to be seen in different ways.
Ironically, her own work receives critism to what she said of Kolhberg's research - "the most criticized element to her theory is that it follows the stereotype of women as nurturing, men as logical. The participants of Gilligan’s research are limited to mostly white, middle class children and adults..." (from http://www.psychology.sbc.edu/Gilligan.htm
Her levels for women:
Level 1 - Orientation of individual survival. The only obligation is to one's own survival.
Transition 1 - Going from selfishness to responsibility. Realizes one is part of a group and makes decisions based on how these actions affect others.
Level 2 - Goodness as self-sacrifice. Morality is defined by meeting the expectations of others and being submissive to the norms of society. Guilt is a powerful tool here.
Transition 2 - From goodness to truth. Truth and honesty are more important than the reactions of others. She starts considering her own needs again.
Level 3 - Morality of nonviolence. The emphasis is on not hurting people, including oneself.