I had to take my recently aquired 81 Corvette over the pits to transfer the rego over locally. Apparently if your car has a mod plate, which mine has for such things as seat belts, lights etc it must go over the pits the first time.
It failed on a few things one of which were the rear indicators. My indicators are basically the reverse lights rewired as indicators and then amber globes fitted to them, a very common mod for Corvettes.
The reason they failed was because the light emitted from the amber globe was not intense enough and light was coming through the red reflector emiting a red light.
Now as my Vette was built after 1972 i can only have amber as the indicator.
Rather than stuff around trying to block the light from going through the red reflector i figured that i would just buy amber indicators for it.
Well through all my searches i found that there are plenty of amber light kits for the C4, C5 and C6 but apparently nobody makes an amber tail light kit for the C3!
So i took one of the lights down to the local auto electrical parts suppliers and found some LEDs that were only 3mm larger in diameter.
I had them fitted up and needless to say it passed with flying colours.(pun intented:grin:)
BTW the reverse lights are the row of clear LEDs at the top of the number plate recess.