How To Replace Automatic Transaxle

Automatic Transaxle Replacing On Chrysler 300M

For Manual Transaxle replacing click here

Automatic Transaxle Removal Procedure Is As follows:----

Don't Ignore The WARNING: 
Allowing the CV-joint assemblies to dangle unsupported, or pulling or pushing the ends, can damage boots or CV-joints. Always support both ends of the halfshaft to prevent damage or disengagement of the Tri-pot joint.

Before servicing the vehicle, make sure you take proper Precautions.

Remove or disconnect the following parts mentioned below:
  • Negative battery cable
  • Front wheels
  • Front caliper assembly from steering knuckle
  • Front brake rotor from the hub
  • Speed sensor cable routing bracket from strut assembly
  • Hub and bearing-to-stub axle retainer nut
Once the mentioned components are removed ...............
Install a puller tool onto the hub and bearing assembly and secure it into place using the wheel lug nuts.

Protect wheel stud threads by installing a wheel lug nut onto a wheel stud. Use a flat-bladed prying tool to prevent the hub from turning. Using the puller tool, force the halfshaft outer stub axle from the hub and bearing assembly.

2004 Chrysler 300m Front Halfshaft
Fig. Front halfshaft assemblies-2004 shown, others similar

How To Remove the Stub Axle Is Shown Below In the Diagram:----
Chrysler Stub Axle Replacement Diagram
Fig. Removing the stub axle from the front hub/bearing assembly-halfshaft service

Outer Cv-joint Has to be removed very carefully.The Diagram Below Shows How To Remove Cv-joint:

Chrysler Cv-joint Replacing
Fig. Be careful not to damage the threads for the axle nut when removing the outer CV-joint from the steering knuckle-halfshaft service

The Helpful Summary Of How To Exactly Perform This Disassembly:
Please Don't Ignore the Important Notifications And Warning Mentioned.
Dislodge the inner Tri-pot joint from the stub shaft retaining snapring on the transaxle. To do this, insert a prybar between the transaxle case and the inner Tri-pot joint and pry on Tri-pot joint.

Do not try to remove the inner Tri-pot joint from the transaxle stub shaft at this time. Only disengage the inner Tri-pot joint from the retainer snapring.

Remove the strut assembly-to-steering knuckle attaching bolts from the strut assembly.

The strut assembly-to-steering knuckle bolts are serrated (toothed) where they go through the strut assembly and steering knuckle. When removing the bolts, turn the nuts off the bolt; do not turn the bolts in the steering knuckle or damage to the steering knuckle will result.

Separate the top of the steering knuckle from the lower end of the strut.

Hold the outer joint assembly with one hand. Grasp the steering knuckle with the other hand and rotate it out and to the rear of the vehicle, until the outer CV-joint clears the hub and bearing assembly.

When removing the outer CV-joint from the hub and bearing assembly, do not allow the flange disc on the hub and bearing assembly to become damaged. If this happens, dirt and water can enter the bearing, which will cause premature bearing failure.

Remove the halfshaft inner joint from the transaxle stub shaft by grasping the inner Tri-pot joint and the interconnecting shaft and pulling both pieces at the same time. Take care not to pull on the interconnecting shaft to remove or separation of the spider assembly will occur.

Once all the part is out then clean the dirty part,service the parts and replace the faulty worn out broken/damaged parts.

After that the simple and easy procedure To install:

Install the Tri-pot joint side of the halfshaft by performing the following procedure:

  • Replace the inner Tri-pot joint retaining circlip and O-ring seal on the transaxle stub shaft. These components are not reusable and must be replaced whenever the halfshaft is removed.
  • Apply an even coat of grease on the splines of the inner Tri-pot joint, where the O-ring seats against the Tri-pot joint.
  • Install the halfshaft through the hole in the splash shield. Grasp the inner joint in 1 hand and interconnecting shaft in the other. Align the inner Tri-pot joint spline with the stub shaft spline on the transaxle. Use a rocking motion with the inner Tri-pot joint to get it past the circlip on the transaxle stub shaft.
  • Continue pushing the Tri-pot joint onto transaxle stub shaft until it stops moving. The O-ring on the stub shaft should not be visible when the inner Tri-pot joint is fully installed. Check that the inner Tri-pot joint is locked in position by grasping the inner joint and pulling. If locked in position, the joint will not move on the stub shaft.

Hold the outer CV-joint assembly with one hand. Grasp the steering knuckle with the other and rotate it out and to the rear of the vehicle. Install the outer CV-joint into the hub and bearing assembly.

Install or connect the following:

  • Top of the steering knuckle into the strut assembly. Align the steering knuckle-to-strut assembly mounting holes.
  • Strut assembly-to-steering knuckle attaching bolts. Install the nuts to the attaching bolts and while holding the bolt heads, torque the nuts to 125 ft. lbs. (170 Nm). Turn the nuts on the bolts. DO NOT turn the bolts.
  • New hub and bearing assembly-to-stub shaft retainer nut. Tighten but do not torque the nut at this time.
  • Speed sensor cable routing bracket and screw
  • Brake rotor and caliper assembly; then, tighten the caliper guide pin bolts to 30 ft. lbs. (41 Nm)
  • Front wheels and lug nuts
  • Negative battery cable

Once all the process is done then test the brake.It should be firm tight like original.Pump the brakes until a firm pedal is obtained.

Apply the brakes and torque the new stub shaft-to-hub and bearing assembly retainer nut to 120 ft. lbs. (163 Nm).

When tightening the stub shaft retaining nut, be careful not to exceed the maximum torque specification of 120 ft. lbs. (163 Nm). If this specification is exceeded, failure of the halfshaft could result.

Road test the vehicle to check for noise or vibration.

This Procedure will Help to Replace The Automatic Transaxle.

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