[blue sky]

Original Mk1 and 2 cars used T10s of the Galaxie design with 28 spline output shaft. This is the long tailhousing with shifter located at the front of the tailhousing. So a toploader of the same model would be direct replacement. I would prefer a close ratio vs. wide ratio given a Cobra's weight but that is what ever you prefer or have available to you. A Tiger/Fairlane toploader will also fit since the shifter is mounted in the same spot but the tail housing is several inches shorter. These transmissions also happen to be harder to locate since there numbers were much less than the others. Obviously a longer drive shaft than original is required with this version.