A/T - AX4S/AX4N Redesigned Park System

Article No.
99-20-2

10/04/99

TRANSAXLE - AX4S/AX4N - REDESIGNED PARK
SYSTEM - SERVICE TIP

FORD:
1999-2000 TAURUS, WINDSTAR

LINCOLN:
2000 CONTINENTAL

MERCURY:
1999-2000 SABLE

ISSUE
1999 Taurus, Sable and Windstar vehicles with an AX4S transaxle built August 1999 and beyond and all 2000 Taurus, Sable and Windstar vehicles with AX4S or AX4N transaxles and 2000 Continental vehicles built October 1999 and beyond have a new redesigned park system in the transaxle. The parts are NOT interchangeable with the original design.

ACTION
When servicing a transaxle, refer to the following text for non-interchangeable parts.

Service Procedure

The effected parts are:





^ Parking Pawl (-7A441-), Figure 1





^ Parking Pawl Return Spring (-7D070-), Figure 2





^ Parking Pawl Shaft (-7D071-), Figure 3





^ Parking Pawl Shaft Retention Bolt (new item,
AX4S only), Figure 4





^ Abutment Plate (-7G101-), Figure 5





^ Parking Pawl Apply Rod (-7D410-), Figure 6





^ Apply Rod Inner Lever (-7A256-), Figure 7





^ Detent Lever (-7A115-), Figure 8





^ Detent Spring (-7E332-), Figure 9





^ Manual Control Shaft (-7C493-), Figure 10





^ Transaxle Case (-7005-), Figure 11





^ Chain Cover (-7G188-), Figure 12





^ Chain Cover Gasket (-7G303-), Figure 13





^ Rear Planetary Support (-7A130-, AX4S only), Figure 14





^ Lower Pan (-7A194-, AX4N only), Figure 15





^ Combined Rear Lube and Differential Lube Tube (-7G084-, AX4N only), Figure 16





^ Pinion Shaft in Differential Case Retaining Ring, Figure 17

The new design park system has changes to most of the parts that should prevent mixing of original and new design parts. Care must still be taken to ensure that if replacement of any part affected by this change is necessary, the correct part is installed.

There are some easy ways to know if the transaxle you are servicing has the new design park system.

1. The roll pin locations on the manual shaft have changed and the levers on the manual shaft face the opposite direction.





2. The collar that the roll pin goes through on the two levers face inward on the new design, Figure 18.





3. The parking pawl, parking pawl return spring and the abutment plate are larger and differ in shape from the original design, Figure 19.

4. One part that may be more difficult to identify would be the Rear Planetary Support (-7A130-) on the AX4S transaxle only, refer to Figure 14.

Sometime in the near future, for past model service (back to 1991 on AX4S and 1994 on AX4N), if the transaxle case is replaced, the transaxle will be upgraded to the new design park system. All of the parts required for this upgrade will be included with the transaxle case (-7005-).

OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 501000, 502000, 503000, 503300, 504000