Reproduction 66 cuda / valiant lenses
The '64-'65-'66 Valiant & Barracuda taillamp setup puts the lenses directly above the hot bulbs. Eventually they get a melt-divot in them even with correct bulbs. This can be worked around, and any not-quite-red-enough tint in the new lenses can be dealt with at the same time, by clever bulb selection. Be real careful with your "LED bulbs" -- in quotes because most of them are unsafe junk. Detailed info
here. The only ones worth using for the brake lights are
these...for the backup lights
these...for the front turn signals
these.
Don't mess with "load resistors" (good way to louse up the reliability of the system), instead put in
a flasher configured to work with LEDs.
(While you're in there, clean the reflectors and shoot 'em with "chrome" spray paint, which is ideal for the task)