I have had issues with the rear tail lights for years. Turn signal wouldn't work, brake light out etc. Usually taking the bulb out and replacing would let it work for a while. Tried sanding contacts on bulbs and sockets. Gave up and looked for replacements. Only found left circuit assembly Dorman 923-031, could not find a right one. It looks copper coated instead of zinc. Got the left one and confirmed the right is exactly the same so ordered another "left" one for the right. Hope this solves the problem.
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