Rear Subframe: Service and Repair

Uni-Body, Subframe and Mounting System - Rear Subframe


This is a "Trustmark Authoring Standards (TAS) Repair Procedure"
- TAS style procedures can be identified by steps that have no accompanying step text and the magenta color of the electrical connectors and fasteners such as nuts, bolts, clamps or clips.
- TAS removal and installation procedures use a sequence of color illustrations to indicate the order to be followed when removing/disassembling or installing/assembling a component.
- Many of the TAS procedures will have the installation information within the removal steps.
- The TAS color illustrations use a variety of symbols to indicate important details of the procedures. It is important to understand these symbols in order to properly used the TAS procedures.
Refer to How to Use TAS Procedures and TAS Symbol Glossary at Vehicle | Description and Operation for additional information on these TAS procedures.
For additional information, refer to How to Use TAS Procedures How to Use TAS Procedures

Removal and Installation

General Equipment
Powertrain Jack

Removal
1.







2. Remove the stowage compartment.







3. 3. NOTE: Use an additional wrench to prevent the component from rotating.

Remove the adjusting nut and disconnect the front parking brake cable.

4. Release the rear parking brake cables and remove the compensator.







5. Remove the rear quarter trim panels.
6.







7. Repeat the above procedure on the opposite hand.
8.







9. Repeat the above procedure on the opposite hand.

10. 10. WARNING: Make sure to support the vehicle with axle stands.

Raise and support the vehicle.

11. Remove both rear wheels and tires.
12. If installed, remove the rear suspension height sensor.
13. Remove the rear muffler.

14. 14. CAUTIONS:
- Mark the position of the driveshaft flange in relation to the drive pinion flange.
- To avoid damage to the joint or gaiter, do not allow the driveshaft to hang.

Discard the bolts.







15.







16. Repeat the above procedure on the opposite hand.
17.







18.







19. Repeat the above procedure on the opposite hand.

20. 20. CAUTION: Make sure that no load is placed on the brake hose.

Tie the rear brake caliper aside.







21. Repeat the above procedure on the opposite hand.

22. 22. CAUTION: Make sure the bushing(s) or isolator(s), are not strained or left unsupported during this procedure.

Release the trailing arm to body bracket.







23. Repeat the above procedure on the opposite hand.
24. Support the subframe.

General Equipment: Powertrain Jack

25.







26. Carefully lower the subframe for access to the differential breather lines.
27.







28. 28. CAUTION: Make sure that no components catch.

With assistance, remove the rear subframe assembly.

29. NOTE: Do not disassemble further if the component is removed for access only.







30.







31.







32. Discard the bolts.







33. Discard the bolts.







34. With assistance, remove the rear subframe.

Installation

1. 1. CAUTION: Make sure that new bolts are installed.

- Clean the component mating faces.
- With assistance, install the subframe.
- With assistance, align and secure the differential.
- Tighten the rear bolts.
Torque: 110 Nm

- Tighten the front bolts.
Torque: 175 Nm

2. 2. CAUTION: Make sure that new bolts are installed.

Align the suspension arms to the subframe and install the bolts, do not fully tighten at this stage.

3. Using the special tool, support the subframe.
4. Connect the transmission breather lines.

5. 5. CAUTIONS:
- Make sure that no components catch.
- Make sure that new bolts are installed.

With assistance, position the subframe to the body and tighten the bolts.
Torque: 175 Nm

6. 6. CAUTION: Make sure that new bolts are installed.

Install the stabilizer clamp bolts, but do not tighten fully at this stage.

7. Connect the Active On-demand Coupling module electrical connector.
8. Remove the powertrain jack.

General Equipment: Powertrain Jack

9. 9. CAUTION: Make sure that new bolts are installed.

Install the trailing arm to body brackets.
Torque: 110 Nm

10. 10. CAUTION: Make sure that the brake hose is not twisted and is correctly located.

- Clean the component mating faces.
- Install the brake caliper anchor plate.
Torque: 110 Nm

- Repeat the above procedure for the other side.

11.
- Secure the wheel speed sensor and lead.
Torque: 5 Nm

- Secure the lead in the clips.
- Repeat the above procedure for the other side.

12. LH side: Connect the ride height sensor electrical connector.
13.
- Position and secure the rear shock absorbers.
- Install both mass dampers.
Torque: 25 Nm

- Repeat the above procedure for the other side.

14. 14. CAUTION: Make sure that new bolts are installed.

- Clean the component mating faces.
- Connect the driveshaft to the rear flange.
Torque: 40 Nm







15. Install the parking brake cables to the guide tubes.
16. Connect the parking brake cables.
17. Adjust the parking brake.
18. Install the rear muffler.
19. Install the rear quarter trim panels.
20. Install the rear suspension height sensor.
21. Install the wheels and tires.

22. 22. CAUTION: Nuts and bolts must be tightened with the weight of the vehicle on the suspension.

Tighten the stabilizer bar clamp bolts.
Torque: 60 Nm

23. 23. CAUTION: Nuts and bolts must be tightened with the weight of the vehicle on the suspension.

- Tighten the suspension arms to the subframe.
Torque: 175 Nm

- During installation, do not tighten the nuts and bolts until the 4 wheel alignment procedure has been carried out.

24. Carry out a complete vehicle geometry check and adjustment.