Pontiac GTO Forum banner

th400 4 speed transmission swap

  1. 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?
Top