Driveshaft replacement

Tiny
BESINES
  • MEMBER
  • 2007 CADILLAC CTS
  • 3.6L
  • AUTOMATIC
  • 130,000 MILES
When replacing a driveshaft with another used driveshaft should you align the front or the back for balancing?
Thursday, May 10th, 2018 AT 5:08 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi and thanks for using 2CarPros. Com. I have attached directions specific to your vehicle for driveshaft replacement. The steps are from start to finish. Additionally, I have attached several pictures which correlate with the directions. As far as alignment, I skimmed through the directions and see nothing indicating alignment for balancing. Here are the directions from AllData.

Tools Required
J44394Seal Protector
Removal Procedure
Raise and support the vehicle.
Remove the tire and wheel assembly.

Insert a drift or punch into the brake rotor and against the caliper in order to prevent the wheel hub and bearing from turning.
Important: The wheel drive shaft spindle nut must not be reused. Replace the wheel drive shaft spindle nut with a new nut whenever it is removed.

Remove and discard the wheel drive shaft spindle nut.
Remove the drift or punch from the rotor.
Remove the rear knuckle assembly.

Using a suitable tool, carefully release the wheel drive shaft from the rear differential enough to install the J44394.

Carefully install the J44394 over the wheel drive shaft.
Notice: J-44394 must be installed into the differential output shaft seal prior to removing and installing the wheel drive shaft. Failure to install J-44394 as indicated may cause the splines of the wheel drive shaft to cut the differential output seal.

Carefully slide the J44394 into the differential output shaft seal.
Remove the wheel drive shaft from the vehicle.
If reusing the wheel drive shaft remove and discard the wheel drive shaft retaining ring. The wheel drive shaft retaining ring is on the splined shaft of the cross groove joint.
Installation Procedure
Install the new wheel drive shaft retaining ring. The wheel drive shaft retaining ring is on the splined shaft of the cross groove joint.

If previously removed carefully install J44394 into the differential output shaft seal.
Notice: J-44394 must be installed into the differential output shaft seal prior to removing and installing the wheel drive shaft. Failure to install J-44394 as indicated may cause the splines of the wheel drive shaft to cut the differential output seal.

Carefully install the wheel drive shaft into the differential until the splines are past the J44394. Ensure that the retaining ring is installed in the upright position.
Important: In order to prevent lubricant leaks, use care when installing the wheel drive shaft to the differential. Do not damage the oil seal. Replace the oil seal if it becomes nicked, distorted, or is otherwise damaged.

Carefully remove the J44394 from the differential output shaft seal.

Carefully remove J44394 from the wheel drive shaft.
Carefully install the wheel drive shaft into the differential until the retaining ring is engaged.
Ensure the wheel drive shaft retaining ring is fully engaged to the differential by grasping the inner housing and pulling outward. The wheel drive shaft will stay positively engaged if properly installed to the differential.
Install the rear knuckle.
Loosely install the NEW wheel drive shaft spindle nut.
Important: Ensure that the drive shaft seals do not have any abrasions, cuts or punctures.

Insert a drift or punch into the brake rotor and against the caliper in order to prevent the wheel hub and bearing from turning.

Use the New wheel drive shaft spindle nut to slowly pull the spindle to the wheel hub and bearing assembly. Tighten the wheel drive shaft spindle nut to 160 Nm (118 ft. Lbs.).
Notice: Refer to Fastener Notice in Service Precautions.

Remove the drift or punch from the rotor.
Install the tire and wheel assembly.
Inspect the differential lubricant level.
Lower the vehicle.

I hope this helps.

Take care,
Joe
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Friday, May 11th, 2018 AT 7:46 PM

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