Matt, I believe the electronic speedo adapters came out in '88 but I am not positive on that. Maybe check the tech articles on the T-5 and see if it tells you there. Good Luck

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Ontario Inliners

1940 Chev Sedan
1954 Chev Custom
1965 Chev Pick-up

Ontario Inliners
1965 Chevelle
1940 Chev
1965 Chev Pick-up
1970 MGB Roadster