When doing replacement or upgrading on 1964 – 1970 Dodge A100 Pickup Truck 2 4 headlamps with, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

High Beam and Low Beam Headlight1967 – 1968 6014
Brake1967 – 1968 198
Dome Light1967 – 1968 1004
Front Turn Signal1967 – 1968 1156
Parking Light1967 – 1968 97
Rear Turn Signal1967 – 1968 1156
Tail Light1967 – 1968 198
High Beam and Low Beam Headlight1966 – 1970 6014
Brake1966 – 1970 198
Dome Light1966 – 1968 1004
Front Turn Signal1966 – 1970 1156
Parking Light1966 – 1970 97
Rear Turn Signal1966 – 1970 1156
Tail Light1966 – 1970 198
Courtesy1969 1004
1970 105
Low Beam Headlight1964 – 1965 H5006
High Beam Headlight1964 – 1965 H5001
Brake1964 – 1965 1157
Dome Light1964 – 1965 1003
Front Turn Signal1964 – 1965 1157
Parking Light1964 – 1965 67
Rear Turn Signal1964 – 1965 1034
Tail Light1964 – 1965 1034
High Beam and Low Beam Headlight1964 – 1965 6014
Brake1965 1034
1964 1157
Dome Light1964 – 1965 1003
Front Turn Signal1964 – 1965 1157
Parking Light1964 – 1965 67
Rear Turn Signal1965 1034
1964 1157
Tail Light1964 – 1965 1034