For 1990-2009 cars

### Removal Procedure

#### Tools Required

• | J 6627-A Tie Rod/Wheel Stud Puller

• | J 28467-A Engine Support Fixture

• | J28467-450 Engine Support Fixture Adapters

• | J 36660-A Torque/Angle Meter

• | J 36857 Lift Brackets

• | J 42089 Linkage Installer

Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

1. Attach the engine support fixture at the engine lift points. Refer to

   #### Supporting Engine with J 28467-A

   .
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the front wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
4. Remove the wheel speed sensor from the strut assemblies.
5. Remove the brake wear indicator wires from the strut assemblies.
6. Remove the brake flex hose clips from the strut assemblies.
7. Remove the hoses from the strut assemblies.
8. Remove the wheel speed sensor bolts.
9. Remove the wheel speed sensors.
10. Remove the brake caliper assembly bolts from the steering knuckles.

Important: Support the brake caliper assemblies. Do NOT allow the brake caliper assemblies to hang freely or damage may occur to the flex hose.

11. Remove the brake caliper assemblies from the steering knuckles. Do NOT open the brake hydraulic system.
12. Remove the outer tie rod nuts.
13. Use J 6627-A to remove the outer tie rod ball studs from the steering knuckles.
14. Remove the lower control arm ball stud pinch bolts (1).
15. Remove the steering knuckles from the lower control arm ball studs.
16. Remove the stabilizer shaft link nuts.
17. Remove the stabilizer shaft links from the stabilizer shaft.
18. Remove the engine mount nuts.
19. Support the crossmember frame.
20. Remove the engine front crossmember frame bolts.
21. Lower the front crossmember frame.

### Installation Procedure

Important: Properly seat the radiator lower guide pins and the engine mounts. Verify that no lines, wires, etc. are pinched.

1. Position the front crossmember frame.

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.

Important: Use new engine front crossmember frame bolts.

2. UseJ 36660-A in order to install the front crossmember frame bolts.

Tighten

1. Tighten the 4 engine front crossmember frame to body bolts to 150 N·m (111 lb ft) + 37 degrees.
2. Tighten the engine front crossmember frame to the radiator support bolts to 65 N·m (48 lb ft) + 37 degrees.

3. Install the engine mount nuts.

Tighten
Tighten the engine mount nuts to 55 N·m (41 lb ft).

4. Install the stabilizer shaft links to the stabilizer shaft.
5. Install the stabilizer shaft link nuts.

Tighten
Tighten the stabilizer shaft link nuts to 65 N·m (48 lb ft).

6. Install the steering knuckles to the lower control arm ball studs.
7. Install new lower control arm ball stud pinch bolts from the rear toward the front of the vehicle.
8. Install the lower control arm ball stud pinch bolts (1).

Tighten
Tighten the lower control arm ball stud pinch bolts to 100 N·m (74 lb ft).

9. Install the outer tie rods into the steering knuckles.
10. Install the J 42089 to the tie rod ball studs.

Tighten
Tighten the J 42089 to 30 N·m (22 lb ft) in order to allow the ball stud taper to seat.

11. Remove the J 42089 from the tie rod ball studs.

Important: Use new self-locking tie rod nuts.

12. Install the outer tie rod nuts.

Tighten
Tighten the outer tie rod nuts to 60 N·m (44 lb ft).

Important:

• | Run a M12 x 1.5 tap through the holes for the brake caliper assembly bolts to clean out the old locking compound.

• | Use new bolts for the brake caliper assembly connection to the steering knuckle.

• | Coat the bolts with locking compound. Use GM P/N 12345493 Goodwrench 272 Threadlocker, or equivalent.

13. Install the brake caliper assemblies to the steering knuckles using J 36660-A .

Tighten
Tighten the brake caliper assembly bolts to 95 N·m (70 lb ft) + 37 degrees.

14. Install the wheel speed sensor wiring to the strut assemblies.
15. Install the brake wear indicator wires to the strut assemblies.
16. Install the brake hoses to the strut brackets with the clip.
17. Install the wheel speed sensors.
18. Install the wheel speed sensor bolts.

Tighten
Tighten the wheel speed sensor bolt to 8 N·m (71 lb in).

19. Install the front wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
20. Lower the vehicle.
21. Adjust the wheel alignment. Refer to Wheel Alignment Measurement in Wheel Alignment.