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th400 4 speed transmission swap
4 speed transmission options to replace TH400 in 1967 GTO?
1964-1974 Tempest/Lemans/GTO Frame, Trans, Diff.
I drive my '67 GTO every day and can see the gas gauge move when cruising at 75mph and 3200 RPM. What would you recommend as a swap to go to a 4 speed automatic? Without too much headache please :) Perhaps a 700R4?
4 mo ago
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