Thread: 1990 454SS tach
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Old 06-02-2018, 05:54 PM   #2
ChevyTech
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Join Date: May 2004
Location: Minnesota
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Re: 1990 454SS tach

To use a 1991 cluster in a 1990 truck, you have to move B15 to B11, A11 to A10, and A10 to A9.
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