🔧 Control Arms - Front Lower Control Arm Replacement

This procedure covers replacing the front lower control arm(s) on your Corolla. The control arm holds the front wheel in the correct position and helps the car steer, brake, and ride smoothly. If the bushings are torn or the ball joint is loose, the arm should be replaced as a complete assembly.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• Work on a flat surface and chock the rear wheels.
• Support the car with jack stands before removing any suspension parts.
• Do not let the steering knuckle hang by the axle or brake hose.
• Use a spring-safe method if the knuckle must be moved far down.
• Have a wheel alignment done after the repair.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands
• Wheel chocks
• 21mm socket
• 19mm socket
• 17mm socket
• 14mm socket
• Breaker bar
• Torque wrench
• Ratchet
• Socket extension
• Ball joint separator (specialty)
• Penetrating oil
• Paint marker
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front lower control arm assembly - Qty: 2
• Front lower control arm mounting bolts and nuts - Qty: 1 set
• Front stabilizer link nut hardware - Qty: 2
• Alignment service - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Loosen the front lug nuts slightly before lifting the car.
• Raise the front and support it securely on jack stands.
• Replace control arms in pairs if both sides are worn.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the front wheel

• Use a 21mm socket to remove the lug nuts and take off the wheel.
• Mark wheel positions if you rotate tires later.

Step 2: Free the stabilizer link

• Use a 17mm socket to remove the sway bar link nut from the control arm.
• If the stud spins, use an Allen key set to hold the stud while turning the nut.

Step 3: Separate the lower ball joint from the steering knuckle

• Use a 17mm socket to remove the lower ball joint pinch bolt at the knuckle.
• Use a ball joint separator (specialty) to carefully free the ball joint from the knuckle.
• Do not pull on the brake hose or axle.

Step 4: Remove the rear control arm bolt

• Use a 19mm socket and breaker bar to remove the rear mounting bolt.
• Support the arm with one hand as the bolt comes out.

Step 5: Remove the front control arm bolt

• Use a 19mm socket to remove the front mounting bolt.
• Remove the control arm from the subframe.

Step 6: Install the new control arm

• Position the new arm into the subframe mounts by hand.
• Install the front and rear bolts finger-tight first.
• Insert the ball joint stud into the steering knuckle.

Step 7: Reinstall the ball joint pinch bolt

• Use a 17mm socket to install the pinch bolt and nut.
• Torque to 100 Nm (74 ft-lbs).

Step 8: Reinstall the stabilizer link

• Use a 17mm socket to install the sway bar link nut.
• Torque to 55 Nm (41 ft-lbs).

Step 9: Tighten the control arm mounting bolts at ride height

• Lower the car enough to support the suspension at normal ride height, or use a jack under the lower arm to load the suspension.
• Use a 19mm socket and torque wrench to tighten the mounting bolts.
• Torque to 156 Nm (115 ft-lbs).
• Tighten bushings at ride height.

Step 10: Reinstall the wheel

• Install the wheel and hand-tighten the lug nuts with a 21mm socket.
• Lower the car and torque to 103 Nm (76 ft-lbs).

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✅ After Repair

• Start the car and listen for clunks or rubbing.
• Turn the steering wheel lock-to-lock and check for smooth movement.
• Inspect the ball joint and bolts one more time after a short drive.
• Schedule a professional wheel alignment right away.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor)

DIY Cost: $180-$360 (parts only)

You Save: $270-$540 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.