4 If you’re still using standard headlights in your classic Ford, you owe it to yourself to see what you’ve been missing, literally. We strongly encourage you to at least upgrade to a sealed glass halogen at the minimum. Better yet, you can purchase replacement lamp housings that retrofit modern halogen light capsules like new cars (shown here). Other options include HID headlamps and LED headlamps. Be sure your headlight wiring and switch are up to snuff too. Headlight relay upgrades can be installed at the same time as your new headlights.