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  1. 1964-1974 Tempest, Lemans & GTO General Discussion
    So my '67 400ci/TH400 is my daily driver and love it. I do drive on the highway quite a bit and at 75mph, I'm turning @ 3200RPM; PHS says I have a 3:36 rear but I have not confirmed this. Considering switching to a 700R4 to something similar. Did find "Gear Vendors" that offers a bolt-on...
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