🔧 Highlander - Rear Shock Absorber Replacement

This job replaces the rear shock absorbers on your Highlander. The shock absorbers control bounce and keep the tires planted, so worn shocks can cause extra bouncing, poor ride control, clunks, or uneven tire wear.

Difficulty Level: Beginner to Intermediate | Estimated Time: 1.5-2.5 hours

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⚠️ Safety & Precautions

• ⚠️ Work on a flat, solid surface and never rely on a jack alone.
• ⚠️ Use jack stands to support your Highlander before going under or near the suspension.
• ⚠️ Replace rear shocks in pairs, even if only one side seems bad.
• ⚠️ Do not remove coil springs for this repair. The rear shock is separate from the spring on your Highlander.
• ⚠️ Keep your hands clear when raising or lowering the rear suspension arm.
• ⚠️ Battery disconnect is not required for rear shock replacement.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• 21mm lug nut socket
• Breaker bar 1/2-inch drive
• Ratchet 1/2-inch drive
• 14mm socket
• 17mm socket
• 19mm socket
• 14mm wrench
• 17mm wrench
• 19mm wrench
• Torque wrench 1/2-inch drive
• Trim clip removal tool
• Flathead screwdriver
• Penetrating oil
• Rubber mallet
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear shock absorbers - Qty: 2
• Rear shock upper mounting bushings - Qty: 2 sets
• Rear shock lower mounting bolts and nuts - Qty: 2 sets

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📋 Before You Begin

• Park your Highlander on level ground.
• Shift to Park and set the parking brake.
• Place wheel chocks in front of the front tires.
• Open the rear liftgate and remove cargo items from the rear area.
• A shock absorber is the tube-shaped part mounted between the body and suspension arm that slows bouncing.
• A torque wrench is a tool that tightens bolts to the correct tightness instead of guessing.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Rear Wheel Lug Nuts

• Use the 21mm lug nut socket and breaker bar 1/2-inch drive to loosen the rear lug nuts about 1/2 turn.
• Do not remove the lug nuts yet.
• Loosen wheels before lifting.

Step 2: Raise and Support the Rear of the Highlander

• Use the floor jack (rated 3-ton minimum) to lift the rear of your Highlander at the rear center jacking point.
• Place the jack stands (rated 3-ton minimum) under the rear side support points.
• Slowly lower your Highlander onto the jack stands using the floor jack (rated 3-ton minimum).
• Gently shake the vehicle by hand to confirm it is stable before working.

Step 3: Remove the Rear Wheels

• Use the 21mm lug nut socket and ratchet 1/2-inch drive to remove the rear lug nuts.
• Remove both rear wheels and set them aside flat on the ground.

Step 4: Support the Rear Suspension Arm

• Place the floor jack (rated 3-ton minimum) lightly under the rear lower suspension arm on the side you are replacing first.
• Raise the jack just enough to support the suspension arm. Do not lift your Highlander off the jack stand.
• This keeps the suspension from dropping suddenly when the shock is disconnected.

Step 5: Remove the Lower Shock Mount Bolt

• Spray the lower shock bolt and nut with penetrating oil.
• Use the 17mm wrench to hold the nut, then use the 17mm socket and ratchet 1/2-inch drive to loosen the bolt.
• If the bolt is tight, use the breaker bar 1/2-inch drive with the 17mm socket.
• Remove the lower bolt and nut by hand once loose.
• If the bolt sticks, tap it gently with the rubber mallet.

Step 6: Access the Upper Shock Mount

• From the rear cargo area, use the trim clip removal tool and flathead screwdriver to carefully release the small interior trim cover near the upper shock mount area.
• Move only the trim needed to reach the upper shock mounting nut.
• Be gentle with the plastic clips because older clips can crack.

Step 7: Remove the Upper Shock Mount Nut

• Use the 14mm wrench to hold the shock shaft if needed.
• Use the 14mm socket and ratchet 1/2-inch drive to remove the upper shock mounting nut.
• Remove the upper washer and bushing if they come off with the nut.
• Keep track of the order of the washer and rubber bushing pieces.

Step 8: Remove the Old Shock Absorber

• Lower the floor jack (rated 3-ton minimum) slightly under the suspension arm if you need more room.
• Pull the old shock absorber downward and out by hand.
• Compare the old shock to the new rear shock absorber before installing.
• Match length and mounts first.

Step 9: Install the New Shock Absorber

• Position the new rear shock absorber into the upper mount first by hand.
• Install the new upper bushing, washer, and nut in the same order as removed.
• Use the 14mm socket and ratchet 1/2-inch drive to snug the upper nut, but do not fully tighten yet.

Step 10: Install the Lower Shock Bolt

• Use the floor jack (rated 3-ton minimum) to raise or lower the suspension arm until the lower shock hole lines up.
• Slide the lower bolt through by hand.
• Install the nut by hand to avoid cross-threading.
• Use the 17mm socket, 17mm wrench, and ratchet 1/2-inch drive to snug the lower bolt.

Step 11: Tighten the Shock Mounting Hardware

• Use the torque wrench 1/2-inch drive with the 17mm socket to tighten the lower shock bolt to Torque to 74 Nm (55 ft-lbs).
• Use the torque wrench 1/2-inch drive with the 14mm socket to tighten the upper shock nut to Torque to 25 Nm (18 ft-lbs).
• Do not crush the rubber upper bushing flat. It should be snug, not smashed.

Step 12: Repeat on the Other Side

• Move the floor jack (rated 3-ton minimum) to support the other rear suspension arm.
• Repeat Steps 5 through 11 using the same 14mm socket, 17mm socket, 14mm wrench, 17mm wrench, and torque wrench 1/2-inch drive.
• Replace both rear shock absorbers as a pair.

Step 13: Reinstall Interior Trim Covers

• Use your hands to align the cargo-area trim panels and clips.
• Use the trim clip removal tool only if a clip needs help lining up.
• Press the trim covers back into place until seated.

Step 14: Reinstall the Rear Wheels

• Put the rear wheels back on by hand.
• Install the lug nuts by hand first.
• Use the 21mm lug nut socket and ratchet 1/2-inch drive to snug the lug nuts in a star pattern.

Step 15: Lower the Highlander and Torque the Lug Nuts

• Use the floor jack (rated 3-ton minimum) to raise your Highlander slightly off the jack stands.
• Remove the jack stands (rated 3-ton minimum).
• Lower your Highlander fully to the ground.
• Use the torque wrench 1/2-inch drive with the 21mm lug nut socket to tighten the lug nuts in a star pattern to Torque to 103 Nm (76 ft-lbs).

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✅ After Repair

• ✅ Bounce each rear corner by hand. Your Highlander should settle quickly without repeated bouncing.
• ✅ Test drive slowly at first and listen for clunks or rattles.
• ✅ Recheck the rear shock lower bolts and wheel lug nuts after the first short drive.
• ✅ No scan tool reset, ADAS calibration, or battery registration is needed for rear shock replacement.
• ✅ If the rear end still feels loose, inspect the rear sway bar links, bushings, tires, and alignment.

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💰 DIY vs Shop Cost

Shop Cost: $350-$650 (parts + labor)

DIY Cost: $120-$260 (parts only)

You Save: $230-$390 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.8 hours.

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🎯 Ready to get started?

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