Rectangular Tail-lights - Legal
The original Lucas lights have no SAE markings, so they may not pass inspection in your locality. We have found a legal substitute that fit fairly well in the stock location (with minor modifications) and have wiring that is compatible. They are however, deeper, so they are not a perfect visual substitute.
The lights are Peterson Manufacturing V306R Rear Turn Signal Lights. They can be purchased from Amazon, among other sources.