[Coloradocobra]

Steve,

Just made this swap myself. The TKO requires a right-hand rotation gear and the toploader uses a left-hand rotation gear so you will need to change. Ford has most of the gears. Here is a section from National Parts Depot...


LH rotation is typically used in 4sMT’s and RH rotation used
in all others (AT, T-5, TK, 3sMT). Transmissions with
the speedo cable hole on the drivers side typically use
RH rotation gears as marked above, Trans with Passenger
side holes typically used LH rotation gears. Repros are
all molded in white. Gear rotation has nothing to do with
the type code (3, 3A)