For use with: McCormick Farmall Cub 1955 - 1964 (serial# 192112 and above)International Cub 1964 - 1979International Cub Lo-Boy 1955 - 1968 International Cub 154 Lo-Boy, 1968 - 1974 International Cub 185 Lo-Boy, 1974 - 1976International 184 Lo-Boy, 1977 - 1980