Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56)

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) Special Tools CH-48845 Strut Spring Compressor CH-48845-10 Strut Spring Compressor Bridge Adapter Equivalent regional tools: Special Tools Removal Procedure

1. Remove the rear tire and wheel assembly. Tire and Wheel Removal and Installation

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 1

2. Rear Wheelhouse Liner Bolt (1) » Remove [4x]
3. Rear Wheelhouse Liner Retainer (2) » Remove

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 2

4. Rear Wheelhouse Liner Bolt (1) » Remove [3x]

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 3

5. Rear Wheelhouse Liner Bolt (1) » Remove [7x]

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 4

6. Rear Wheelhouse Liner (1) » Remove

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 5

7. Rear Brake Hose Bracket Bolt (1) » Remove [2x]
8. Rear Brake Hose Bracket (2) » Remove [2x]

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 6

Note

Using a suitable jack stand, support the rear lower control arm.

9. Rear Suspension Lower Control Arm Outer Bolt (2) » Remove
10. Rear Shock Absorber Nut (1) » Remove
11. Rear Shock Absorber Bolt (3) » Remove

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 7

12. Rear Suspension Lower Control Arm (1) » Reposition

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 8

13. Chassis Rear Wiring Harness Clip (1) » Remove
14. Chassis Rear Wiring Harness » Reposition

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 9

15. Rear Shock Absorber Nut (1) » Remove [3x]

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 10

16. Rear Shock Absorber (1) » Remove Disassembly Procedure

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 11

Warning

To prevent personal injury and/or component damage, use the proper tools to support and compress the coil spring prior to removal of the strut shaft nut when removing the coil spring. The coil spring is under extreme pressure and can become a projectile should the spring separate from the strut before all of the tension is relieved.

Warning

Use only the CH-48845 Spring Compressor when servicing suspension components on this vehicle. Other tools may not be strong enough for the springs on this vehicle and you could be injured if you do not use Special Tool CH-48845. Failure to do so could result in serious personal injury.

Note

ONLY use hand tools to perform the following service procedure.

1. Place the rear shock absorber (3) into the CH-48845 Strut Spring Compressor (1) securing the two lower compressor arms to the rear coil spring lower coils.

Note

The CH-48845-10 Strut Spring Compressor Bridge Adapter is used to compress the rear coil spring from the top of the rear shock absorber mount to provide added stability and aid in compressing the rear shock absorber to sufficiently release tension rather than using the CH-48845 Strut Spring Compressor as a stand alone.

2. Adjust the CH-48845-10 Strut Spring Compressor Bridge Adapter (2) so that the opening of the adapter sufficiently captures the rear shock absorber mount.
3. Install and secure the CH-48845-10 Strut Spring Compressor Bridge Adapter (2) to the two upper compressor arms of the CH-48845 Strut Spring Compressor (1).
4. Adjusting the CH-48845 Strut Spring Compressor (1), remove any clearance between the CH- 48845-10 Strut Spring Compressor Bridge Adapter (2) and the rear shock absorber mount ensuring that it is properly positioned as shown.
5. Using the CH-48845 Strut Spring Compressor (1), compress the rear coil spring enough to remove tension from the rear shock absorber mount.

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 12

6. Rear Suspension Strut Nut (1) » Remove
7. Rear Shock Absorber (3) » Remove
8. Rear Coil Spring Insulator (2) » Remove

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 13

9. Using the CH-48845 Strut Spring Compressor (1), release tension on the rear coil spring (2).
10. Remove the rear coil spring (2) and remaining components from the CH-48845 Strut Spring Compressor (1).

Shock Absorber, Shock Absorber Component, or Spring Replacement (ZW7, Z56) — figure 14

11. Rear Shock Absorber Mount (1) » Remove

12. Rear Shock Absorber Bumper (2) » Remove

13. Rear Shock Absorber Boot (3) » Remove

14. Inspect the components and replace as necessary. Assembly Procedure

15. Rear Shock Absorber Boot (3) » Install

16. Rear Shock Absorber Bumper (2) » Install

17. Rear Shock Absorber Mount (1) » Install

18. Install the rear coil spring (2) and the associated components to the CH-48845 Strut Spring Compressor (1).

19. Using the CH-48845 Strut Spring Compressor (1), apply tension on the rear coil spring (2).

20. Rear Coil Spring Insulator (2) » Install

21. Rear Shock Absorber (3) » Install

22. Adjust the CH-48845 Strut Spring Compressor as necessary so enough of the threaded portion of the rear shock absorber rod is exposed.

Caution

Refer to Fastener Caution.

9. Rear Suspension Strut Nut (1) » Install and tighten — Fastener Specifications

10. Using the CH-48845 Strut Spring Compressor (1), release all tension on the rear coil spring and the rear shock absorber mount.

11. Remove the rear shock absorber (3) from the CH-48845 Strut Spring Compressor (1). Installation Procedure

Note

Prior to installing the rear shock absorber, you MUST apply anti-corrosion wax to the frame shock tower.

1. Apply anti-corrosion wax to the frame shock tower. Anti-Corrosion Treatment and Repair

2. Rear Shock Absorber (1) » Install

Caution

Refer to Fastener Caution.

3. Rear Shock Absorber Nut (1) » Install and tighten [3x] — Fastener Specifications

4. Chassis Rear Wiring Harness Clip (1) » Install

Note

Using a suitable jack stand, support the rear lower control arm.

5. Rear Suspension Lower Control Arm Outer Bolt (2) » Install and tighten — Fastener Specifications

6. Rear Shock Absorber Bolt (3) » Install

7. Rear Shock Absorber Nut (1) » Install and tighten — Fastener Specifications

8. Rear Brake Hose Bracket (2) » Install [2x]

9. Rear Brake Hose Bracket Bolt (1) » Install and tighten [2x] — Fastener Specifications

10. Rear Wheelhouse Liner (1) » Install

11. Rear Wheelhouse Liner Bolt (1) » Install and tighten [7x] — Fastener Specifications

12. Rear Wheelhouse Liner Bolt (1) » Install and tighten [3x] — Fastener Specifications

13. Rear Wheelhouse Liner Retainer (2) » Install

14. Rear Wheelhouse Liner Bolt (1) » Install and tighten [4x] — Fastener Specifications

15. Install the rear tire and wheel assembly. Tire and Wheel Removal and Installation