Front Wheel Drive Shaft Inner Joint and Boot Replacement 3.6L LY7

Tools Required

J 42572 Drive Shaft Seal Clamp Pliers

1. Remove the small seal clamp from the wheel drive shaft bar using side cutters and discard the clamp.

Important: Do not cut into the wheel drive shaft trilobal tripot bushing.

2. Remove the large seal clamp (2) from the tripot joint with side cutters and discard the clamp.
3. Separate the wheel drive shaft inboard seal from the trilobal tripot bushing (3).
4. Slide the seal away from the joint along the wheel drive shaft bar.



5. Remove the housing (1) from the tripot joint spider and the wheel drive shaft bar (2).



6. Using a brass drift and hammer, carefully tap around the tripot spider face in order to compress the barrel retaining ring on the wheel drive shaft bar.
7. Remove the tripot spider (1) from the wheel drive shaft bar (2).
8. Remove and discard the barrel retaining ring from the wheel drive shaft bar.
9. Remove the joint seal from the wheel drive shaft bar.
10. Inspect the following parts for damage or wear:

•	The wheel drive shaft inboard seal

•	The tripot joint spider assembly

•	The housing

•	The trilobal tripot bushing

1. Place the new small seal clamp (2) onto the small end of the joint seal (1). Slide the joint seal (1) and the small seal clamp (2) onto the wheel drive shaft bar.
2. Position the small end of the joint seal (1) into the joint seal groove (3) on the wheel drive shaft bar.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Using the J 42572 , crimp the small seal retaining clamp.

Tighten
Tighten the clamp to 136 N·m (100 lb ft).




4. Install a new barrel retaining ring to the wheel drive shaft bar.




Important: Ensure that the beveled edge of the tripot spider faces the wheel drive shaft bar during reassembly.

5. Install the tripot spider to the wheel drive shaft bar, while compressing the barrel retaining ring with a flat-bladed tool.
6. Verify positive engagement of the tripot spider to the halfshaft bar by grasping the tripot spider and attempting to pull free from the wheel drive shaft bar.




Important: Ensure the trilobal tripot bushing is flush with the face of the housing.

7. Place approximately ½ of the grease from the service kit in the wheel drive shaft inboard seal. Use the remainder of the grease to repack the housing.
8. Install the trilobal tripot bushing (3) to the housing (1).
9. Position the larger new seal retaining clamp (2) on the wheel drive shaft inboard seal.
10. Slide the housing over the tripot joint spider assembly on the wheel drive shaft bar.



11. Slide the large diameter of the wheel drive shaft inboard seal (2), with the large clamp (3) in place, over the outside of the trilobal tripot bushing and locate the lip of the seal in the groove.

Important: The seal must not be dimpled, stretched or otherwise deformed.

12. Inspect the seal for proper shape.

If the seal is not shaped correctly, equalize the pressure in the seal by lifting the seal edge slightly and shape the seal properly by hand.

13. Position the joint assembly at the proper vehicle dimension.



14. Align the following items while crimping the retaining clamp:

•	The wheel drive shaft inboard seal

•	The tripot housing

•	The large seal retaining clamp

15. Using the J 42572 , crimp the large seal retaining clamp.

Tighten
Tighten the clamp to 136 N·m (100 lb ft).

16. Rotate the inner tripot housing 4 or 5 times in order to distribute the grease throughout the tripot spider bearings.

Front Wheel Drive Shaft Inner Joint and Boot Replacement 3.5L LX9

Notice: Do not cut through the wheel drive shaft inboard or outboard boot during service. Cutting through the boot may damage the sealing surface of the housing and the tripot or the constant velocity joint bushing. Damage to the sealing surface may lead to water and dirt intrusion and premature wear of the constant velocity joint.

1. Disconnect the swage ring from the halfshaft bar using a hand grinder to cut through the ring, taking care not to damage the halfshaft bar.
2. Remove the large seal retaining clamp (2) from the tripot joint with side cutters. Discard the large seal retaining clamp.
3. Separate the inboard seal from the trilobal tripot bushing (3) at the large diameter.
4. Slide the seal away from the joint along the halfshaft bar.



5. Remove the housing (1) from the tripot joint spider and the halfshaft bar (2).



6. Spread the spacer ring (1) using J 8059 (or equivalent).



7. Remove the spacer ring (1), spider assembly (2), spacer ring (3) (if equipped) using J 8059 , and tripot boot (4). Discard the boot and rings.
8. Clean the halfshaft bar (5). Use a wire brush in order to remove any rust in the boot mounting area (grooves).
9. Inspect the needle rollers, needle bearings, and trunnion. Check the tripot housing for unusual wear, cracks, or other damage. Replace any damaged parts with the appropriate kit.

1. Place the new small swage ring or eared clamp (2) onto the small end of the joint seal (1). Slide the joint seal (1) and the small swage ring or eared clamp (2) onto the halfshaft bar.
2. Position the small end of the joint seal (1) into the joint seal groove (3) on the halfshaft bar.




Important: For eared clamp installation, proceed to step 5.

3. For swage ring installation, mount J 41048 in a vise and proceed as follows:

3.1.	Position the inboard end (1) of the halfshaft assembly in tool J 41048 .

3.2.	Align the top of the seal neck on the bottom die using the indicator.

3.3.	Place the top half of the J 41048 on the lower half.

3.4.	Before proceeding, ensure there are no pinch points on the halfshaft inboard seal. This could cause damage to the halfshaft inboard seal.

3.5.	Insert the bolts (2).

3.6.	Tighten the bolts by hand until snug.

Notice: Refer to Fastener Notice in the Preface section.




4. Align the following items:

•	The halfshaft inboard seal (1)

•	The halfshaft bar

•	The swage ring (2)

Tighten
Tighten each bolt of J 41048 180 degrees at a time using a ratchet wrench. Alternate between each bolt until both sides are bottomed.





Important: Place a towel in the vise before inserting the halfshaft.

5. For eared clamp installation, mount the halfshaft into a vise.
6. Slide the tripot seal (7) to the corresponding groove on the halfshaft bar.
7. Crimp the eared clamp (6) using J 35910 , a torque wrench (8), and a breaker bar (9).



8. If equipped, install the spacer ring (2) into the groove of the halfshaft bar using J 8059 .



9. Slide the tripot joint spider assembly (4) as far as it will go on the halfshaft bar.
10. Install the spacer ring (2) into the groove of the halfshaft bar J 8059 .



11. Place approximately half of the grease from the service kit in the halfshaft inboard seal. Use the remainder of the grease to repack the housing.

Important: Ensure the trilobal tripot bushing (3) is flush with the face of the housing (1).

12. Install the trilobal tripot bushing (3) to housing (1).
13. Position the larger new seal retaining clamp (2) on the halfshaft inboard seal.
14. Slide the housing (1) over the tripot joint spider assembly on the halfshaft bar.



15. Slide the large diameter of the halfshaft inboard seal (2), with larger clamp (3) in place, over the outside of the trilobal tripot bushing and locate the lip of the seal in the groove.

Important: The halfshaft inboard seal must not be dimpled, stretched out or out of shape in any way. If the halfshaft inboard seal is not shaped correctly, carefully insert a thin flat blunt tool, no sharp edges, between the large seal opening and the trilobal tripot bushing in order to equalize the pressure. Shape the halfshaft inboard seal properly by hand. Remove the tool.

16. Position the joint assembly at the proper vehicle dimension, a = 106 mm (4.00 in).



17. Align the following items while latching:

•	The halfshaft inboard seal

•	The tripot housing (2)

•	The large seal retaining clamp (3)

Tighten
Crimp the seal retaining clamp with J 35910 to 176 N·m (130 lb ft). Add the breaker bar (5) and the torque wrench (4) to J 35910 if necessary.

18. Check the gap dimension (a) on the clamp ear. If the gap dimension is larger than shown, continue tightening until the gap dimension of 2.6 mm (0.102 in) is reached.
19. Fully stroke the joint several times to disperse the grease.