🔧 Front Lower Control Arms - Replacement

This job replaces the front lower control arms, which help locate the front wheels and control ride and steering stability. On your Corolla, this is usually done as a pair so both sides feel the same and the alignment stays balanced.

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

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⚠️ Safety & Precautions

• Support the car securely with jack stands before removing any suspension parts.
• Keep hands clear when lowering or moving the control arm; the spring and knuckle can shift suddenly.
• An alignment is required after this repair.
• If any ball joint nut uses a cotter pin, replace it with a new one.
• 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 (rated for vehicle weight)
• Wheel chocks
• 21mm socket
• 19mm socket
• 17mm socket
• 14mm socket
• Torque wrench
• Breaker bar
• Ratchet
• Ball joint separator (specialty)
• Pry bar
• Hammer
• 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 - Replace in pairs - Qty: 2
• Front lower control arm mounting bolts - Qty: 4
• Front lower control arm nuts - Qty: 2
• Ball joint cotter pins - Qty: 2
• Alignment service - Qty: 1

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📋 Before You Begin

• Park on level ground.
• Set the parking brake.
• Chock the rear wheels.
• Loosen the front lug nuts slightly before lifting the car.
• Spray rusty fasteners before starting.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the front of the car

• Use the floor jack to lift the front of the car at the proper jack point.
• Place jack stands under the support points and lower the car onto them.
• Remove the front wheels with a 21mm socket.

Step 2: Free the ball joint from the steering knuckle

• Spray penetrating oil on the ball joint nut and lower arm bolts.
• Use a 19mm socket and breaker bar to remove the ball joint nut.
• If equipped, remove the cotter pin first.
• Use a ball joint separator to release the ball joint stud from the knuckle.
• Tap the knuckle, not the stud.

Step 3: Remove the control arm from the subframe

• Use a 17mm socket and ratchet to remove the rear mounting bolt.
• Use a 14mm socket and ratchet to remove the front mounting bolt.
• Note the washer and spacer positions before removal.
• Lower the arm out of the car.

Step 4: Install the new control arm

• Position the new control arm into the subframe by hand.
• Start both mounting bolts by hand first.
• Reconnect the ball joint stud into the steering knuckle.
• Install the new ball joint nut.
• Torque the control arm bolts only at normal ride height.

Step 5: Tighten everything to spec

• Reinstall the wheel and snug the lug nuts with the 21mm socket.
• Lower the car so the suspension is loaded at ride height.
• Use the torque wrench to tighten the control arm mounting bolts.
• Torque the front and rear control arm bolts to 103 Nm (76 ft-lbs).
• Torque the ball joint nut to 59 Nm (44 ft-lbs).
• If a cotter pin hole lines up, install a new cotter pin.
• Torque the wheel lug nuts to 103 Nm (76 ft-lbs).

Step 6: Repeat on the other side

• Replace the second control arm using the same steps.
• Use the same torque specs on both sides.

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✅ After Repair

• Check that all fasteners are tight.
• Start the car and slowly turn the steering wheel left and right.
• Test drive at low speed first.
• Listen for clunks or rubbing.
• Schedule a wheel alignment right away.

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💰 DIY vs Shop Cost

Shop Cost: $600-$1,100 (parts + labor)

DIY Cost: $180-$420 (parts only)

You Save: $420-$680 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.