Social classes for native Americans

No Native American tribe (that I know of) had a social class system of any type. Every member of the tribe was equal as far as their status, the tribe only recognized differences in the abilities of each person from age, infirmity, abilities etc. This recongition only changed what was expected of that member, not there status in the tribe. This answer is given with a caveat; tribal societies did recognize social deviants; those who would bully a weaker person (for one example) and in recognizing this they would attempt to correct the behavior and when they were unable to they would cast them out, or kill them.

These tribal societies are noted by European political philosophers as "the apex of human society" (that form of utopian society that many claim is unattainable).