I believe they were originally white from the factory a 1157 bulb the amber bulbs are 1157a allot of people switched to amber over the years I have a 68 coupe as well and I put the amber bulbs in and have switched to LEDs as well. I have switched all bulbs in the car to LEDs as well. including sequential tail lights. Your turn signals are slow because you need to change out you flashers. there are 2 one for turn signal and 1 for hazards. Nice Mustang.
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I believe they were originally white from the factory a 1157 bulb the amber bulbs are 1157a allot of people switched to amber over the years I have a 68 coupe as well and I put the amber bulbs in and have switched to LEDs as well. I have switched all bulbs in the car to LEDs as well. including sequential tail lights. Your turn signals are slow because you need to change out you flashers. there are 2 one for turn signal and 1 for hazards. Nice Mustang.
Dave, thanks for all the awesome info! Do you by chance have a part number or link to a flasher that would work better for me? Thanks in advance.😊