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if your C5 Corvettes's turn signal and park lamp has become inoperative and it's not a burned-out bulb, then it's most likely a burned-out bulb socket.
This is a common problem for many C5 Corvettes due to the limited space for the bulb in the housing and the extreme heat caused by the bulb. Often times the heat causes the bulb socket housing to crack above the bulb, allowing water to intrude into the socket and eventually shorting the socket out.
Until recently you could only buy a used forward lamp harness and hope the sockets were not on their way to being burned-out too. This replacement bulb socket is a direct replacement and is supplied with 3 crimp connectors for easy and simple installation.