When doing replacement or upgrading on 1958 – 1991 Ford Country Squire, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 1987 – 1991 H4656
1958 – 1974 H5006
High Beam Headlight 1987 – 1991 H4651
1958 – 1974 H5001
Back Up Light 1958 – 1974, 1987 – 1991 1156
Brake 1958 – 1959 1034
1960 – 1974, 1987 – 1991 1157
Dome Light 1958 – 1969 1003
1970 – 1971 105
1972 – 1974, 1990 – 1991 561
1987 – 1989 912
Front Side Marker 1973 1157
1968 1157NA
1971 161
1970, 1972, 1987 194
1988 – 1990 912
1991 916NA
Front Turn Signal 1958 – 1974, 1987 1157
1988 – 1990 3157
1991 3157NA
License Plate 1963 – 1967 1155
1987 – 1991 168
1958 – 1962 67
1973 – 1974 90
1968 – 1972 97
Parking Light 1958 – 1974, 1987 1157
1991 3157
1988 – 1990 912
Rear Side Marker 1971 161
1969 – 1970, 1972 – 1974, 1987 – 1991 194
Rear Turn Signal 1959 – 1960, 1962 1034
1958, 1961, 1963 – 1974, 1987 – 1991 1157
Tail Light 1958 – 1962 1034
1963 – 1974, 1987 – 1991 1157
Center High Mount Stop Light 1987 – 1991 912
Courtesy 1988 105
1989 – 1991 168
1971 – 1972, 1974 212-2
1963 – 1970 631
1958 – 1962 67
1973, 1987 89
Engine Compartment Light 1963 – 1965 1156
1962, 1966 – 1970 631
1973 – 1974, 1987 89
1989 906
1990 – 1991 912
Glove Box 1967 – 1970, 1972 1816
1963 – 1966 1895
1973 – 1974, 1987 – 1991 194
1960, 1962 57
Map Light 1962 – 1966, 1974 1003
1987 – 1991 105
1967 – 1970 631
1959 – 1960 89
Radio Display 1960, 1962 – 1967 1891
1959 1892
1968, 1972 – 1974, 1987 1893
1969 – 1971 1895
1958, 1961 57
Trunk 1963 – 1966 1156
1962, 1968 – 1971 631
1972 – 1974, 1987 89
1988 – 1990 906
1967 93