AX4N vs. 4F50N

[Bull Geek]

They never changed the stamping on the Taurus at least. They did change the way the trans mount attached to the trans for 04.

[Breeves002]

Whats different between the AX4N Metric and AX4N? My Sable is the metric one.

[Jeff K]

"X" was Fords original designation for front wheel drive. Examples: The Tempo / Topaz 3 speed ATX with the weird splitter gear partial lockup converter. The original Taurus hybrid controlled (1-2-3 shifts hydraulic controlled, 3-4 shift and TCC lock electrically controlled) was the AXOD - Automatic FWD Overdrive. this morphed into the 100% electronic control AXODE (E for Electronic), which was renamed the A4XS.

RWD example: The original Ford RWD 4 speed auto was the 100% hydraulically controlled AOD (Automatic Overdrive) that appeared in 1980 or so. Early 90s this became the AODE (E for electronic). When the wide ratio gearset appeared a few years later, it became the AODEW, W for wide ratio. This was renamed the 4R70W a few years later: 4 = 4 speed, R = rear wheel drive, 70 = 700 Nm torque capacity, W = wide ratio gearset.

[Jeff K]

Sam, the METRIC stamped on the pan just means the trans is speced with metric dimensions / used metric bolts. The AOD in my 86 Tbird 5.0 is also stamped METRIC on the pan. My guess is to remind mechanics to use metric wrenches / sockets and that dimensions / tolerances are measured in metric units.