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.

1967 – 1968 Dodge A100 Pickup Bulb Size Guide
High Beam and Low Beam Headlight	1967 – 1968	6014
Brake	1967 – 1968	198
Dome Light	1967 – 1968	1004
Front Turn Signal	1967 – 1968	1156
Parking Light	1967 – 1968	97
Rear Turn Signal	1967 – 1968	1156
Tail Light	1967 – 1968	198

1966 – 1970 Dodge A100 Truck Bulb Size Guide
High Beam and Low Beam Headlight	1966 – 1970	6014
Brake	1966 – 1970	198
Dome Light	1966 – 1968	1004
Front Turn Signal	1966 – 1970	1156
Parking Light	1966 – 1970	97
Rear Turn Signal	1966 – 1970	1156
Tail Light	1966 – 1970	198
Courtesy	1969	1004
	1970	105

1964 – 1965 Dodge A100 Truck with 4 headlamps Bulb Size Guide
Low Beam Headlight	1964 – 1965	H5006
High Beam Headlight	1964 – 1965	H5001
Brake	1964 – 1965	1157
Dome Light	1964 – 1965	1003
Front Turn Signal	1964 – 1965	1157
Parking Light	1964 – 1965	67
Rear Turn Signal	1964 – 1965	1034
Tail Light	1964 – 1965	1034

1964 – 1965 Dodge A100 Truck with 2 headlamps Bulb Size Guide
High Beam and Low Beam Headlight	1964 – 1965	6014
Brake	1965	1034
	1964	1157
Dome Light	1964 – 1965	1003
Front Turn Signal	1964 – 1965	1157
Parking Light	1964 – 1965	67
Rear Turn Signal	1965	1034
	1964	1157
Tail Light	1964 – 1965	1034