One new Akebono brand front disc brake caliper repair kit (made in Japan), part number 071-5094, 31-05363, 41120-A6925, 41120-U9625.  This fits:

Datsun Nissan 610 1975 - 1977
200SX 1977 - 1978
B210 1973 - 1979
210 08/1979 - 1982