Replace rear shock absorbers on a 2014-2019 Toyota Corolla 1.8L to restore ride quality and handling.

Warnings

Tools required

Parts

• Rear shock absorber × 2 — Use OEM specification or quality aftermarket

Preparation

1. Park vehicle on level surface and engage parking brake
2. Place wheel chocks in front of front wheels
3. Loosen rear wheel lug nuts while vehicle is on ground (do not remove)
4. Raise rear of vehicle with floor jack at designated jacking points
5. Place jack stands under rear frame rails or designated support points
6. Lower vehicle onto jack stands and verify stability
7. Remove rear wheels completely

Procedure

1. 1

   Access upper shock mounting
   From inside the trunk, locate the upper shock access panels. These are small plastic covers on the rear deck near the rear seats. Carefully pry off the access panel covers to expose the upper shock mounting nuts. On sedan models, these are typically located behind the rear seat near the trunk hinges.
2. 2

   Support rear suspension
   Place the floor jack under the rear lower control arm or axle beam near the shock location. Raise the jack slightly to support the weight of the suspension and bring it to ride height position. This prevents the suspension from dropping excessively when the shock is removed and makes installation easier.
3. 3

   Remove upper shock mounting nuts
   Using a 14mm socket, remove the upper shock mounting nuts from inside the trunk. There are typically two nuts securing the top of each shock assembly. Hold the shock piston rod if it rotates while removing the nuts. Keep these nuts as they will be reused.
4. 4

   Remove lower shock bolt
   From under the vehicle, locate the lower shock mounting bolt connecting the shock to the rear suspension knuckle or axle beam. Using a 17mm socket and wrench, remove the lower mounting bolt. The bolt passes through the shock eye and the mounting bracket. You may need to spray penetrating oil if the bolt is corroded.
5. 5

   Remove shock assembly
   With both upper and lower mounts disconnected, carefully remove the shock absorber from the vehicle. Pull it downward through the lower mounting area. Inspect the old shock for signs of leakage or damage. Check the upper mounting bushings and insulators for wear.
6. 6

   Prepare new shock
   Remove the new shock from packaging and inspect it for any shipping damage. Ensure all mounting hardware, bushings, and insulators are included. If the new shock has protective caps or shipping locks, remove them according to manufacturer instructions. Verify the new shock matches the old one in length and mounting configuration.
7. 7

   Install new shock assembly
   Guide the new shock into position by inserting the upper mounting studs through the body opening first, then align the lower eye with the mounting bracket on the suspension. Ensure upper insulators and bushings are properly positioned. Use the floor jack to adjust suspension height as needed for alignment.
8. 8

   Install lower shock bolt
   Insert the lower mounting bolt through the shock eye and suspension bracket. Start the nut on the opposite side by hand. Using a 17mm socket and torque wrench, tighten the lower bolt to the specified torque. The suspension should be at approximately ride height when torquing this fastener.
   Torque spec

   Strut Bolts109 Nm (81 lb-ft)
9. 9

   Install upper shock nuts
   From inside the trunk, install the upper mounting nuts onto the shock studs. Hand-thread both nuts first to ensure proper alignment. Using a 14mm socket and torque wrench, tighten the upper nuts to specification in a cross pattern if applicable. Do not overtighten as this can damage the rubber insulators.
   Torque spec

   Strut Tower Nuts50 Nm (37 lb-ft)
10. 10

    Repeat for opposite side
    Repeat steps 2 through 9 for the shock on the opposite side of the vehicle. Ensure both shocks are the same part number and properly oriented. Verify all fasteners are torqued to specification.
11. 11

    Reinstall wheels
    Install the rear wheels and hand-thread all lug nuts. Lower the vehicle partially so the tires contact the ground but the suspension is not fully loaded. Tighten lug nuts in a star pattern to specification using a torque wrench.
    Torque spec

    Wheel Lug Nuts129 Nm (95 lb-ft)
12. 12

    Final lowering and checks
    Remove jack stands and lower the vehicle completely to the ground. Bounce each rear corner of the vehicle several times to settle the suspension. Re-check all fastener torque values, especially the upper and lower shock mounting hardware. Reinstall trunk access panel covers.

Reassembly

1. All shock mounting hardware should be torqued to specification with suspension at ride height
2. Upper shock access panels in trunk must be reinstalled to prevent trunk noise and water intrusion
3. Verify no tools or parts remain in trunk area or under vehicle

Verification

• Test drive the vehicle on a familiar road and verify improved ride quality and reduced bouncing
• Listen for any unusual noises from the rear suspension over bumps
• Verify no rattles or clunks from improperly tightened mounting hardware
• Visually inspect for any fluid leakage from new shocks after first drive
• Check that vehicle sits level and maintains proper ride height

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