🔧 Traverse - Front Lower Ball Joint Replacement

On your Traverse, the front lower ball joint is serviced with the lower control arm assembly. The ball joint lets the steering knuckle pivot while the suspension moves up and down. Replacing the full lower control arm is the correct beginner-safe method because it includes the ball joint and control arm bushings already installed.

Difficulty Level: Advanced | Estimated Time: 3-5 hours

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⚠️ Safety & Precautions

• ⚠️ The front suspension supports vehicle weight. Always use jack stands and never work under a vehicle supported only by a jack.
• ⚠️ The steering knuckle can swing outward when the ball joint is separated. Support it to avoid damaging the CV axle, brake hose, or ABS wire.
• ⚠️ Do not hammer directly on the threaded ball joint stud. Damaged threads can prevent proper tightening.
• ⚠️ Replace both left and right lower control arms if both ball joints are worn. This keeps handling even side-to-side.
• ⚠️ A wheel alignment is required after replacing a lower control arm or ball joint.
• ⚠️ Battery disconnect is not 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 3-ton minimum)
• Wheel chocks
• 22mm lug nut socket
• 1/2-inch drive breaker bar
• 1/2-inch drive ratchet
• 10mm socket
• 15mm socket
• 18mm socket
• 21mm socket
• 24mm socket
• 10mm wrench
• 18mm wrench
• 21mm wrench
• 24mm wrench
• Torque wrench (20-250 ft-lb range)
• Ball joint separator (specialty)
• Pry bar (18-inch)
• Hammer (2 lb)
• Brass punch
• Penetrating oil
• Wire brush
• Bungee cord
• Paint marker
• Work gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front lower control arm assembly with ball joint - Qty: 1 per side
• Front lower ball joint nut - Qty: 1 per side
• Front lower control arm mounting bolts - Qty: 2 per side
• Front lower control arm mounting nuts - Qty: 2 per side
• Front stabilizer bar link nut - Qty: 1 per side

Replace in pairs if both sides are worn: left and right lower control arms should be replaced together when wear is present on both sides.

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📋 Before You Begin

• Park your Traverse on level ground.
• Shift to Park and apply the parking brake.
• Place wheel chocks behind the rear tires.
• Loosen only the side you are working on first, unless replacing both sides.
• Use a paint marker to mark control arm bolt positions before removal. This helps keep alignment close enough for a safe drive to the alignment shop.
• Plan for a professional wheel alignment immediately after the repair.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Front Wheel Lug Nuts

• Use a 22mm lug nut socket and 1/2-inch drive breaker bar to loosen the front wheel lug nuts about 1/2 turn.
• Do not remove the lug nuts while the tire is still on the ground.
• Loosen first, lift second.

Step 2: Lift and Support the Vehicle

• Use a floor jack to lift the front of your Traverse at the approved front lifting point.
• Place jack stands under the approved front support points.
• Lower the vehicle slowly onto the jack stands.
• Gently shake the vehicle by hand to confirm it is stable before working.

Step 3: Remove the Front Wheel

• Use the 22mm lug nut socket and 1/2-inch drive ratchet to remove the lug nuts.
• Remove the wheel and place it flat under the vehicle as an extra safety backup.

Step 4: Inspect and Support the Steering Knuckle

• Use a bungee cord to support the steering knuckle from the strut spring or body structure.
• The steering knuckle is the large metal part that holds the wheel hub and connects to the ball joint.
• Make sure the brake hose and ABS wire have slack and are not stretched.

Step 5: Remove the Lower Splash Shield Fasteners if Needed

• If the lower control arm bolts are blocked by a shield, use a 10mm socket or 15mm socket to remove the shield fasteners.
• Set the shield and fasteners aside in order.

Step 6: Disconnect the Stabilizer Bar Link if It Blocks Access

• Spray the stabilizer bar link nut with penetrating oil.
• Use a wire brush to clean the exposed threads.
• Use an 18mm socket and 18mm wrench to remove the stabilizer bar link nut from the control arm or strut area if it blocks movement.
• The stabilizer bar link connects the suspension to the sway bar, which reduces body roll in turns.

Step 7: Mark the Lower Control Arm Mounting Position

• Use a paint marker to mark around the lower control arm mounting points.
• These marks help you install the new arm close to the original position.
• This does not replace a proper alignment.

Step 8: Remove the Ball Joint Nut

• Use a 21mm socket or 24mm socket with a 1/2-inch drive ratchet to loosen and remove the ball joint nut at the bottom of the steering knuckle.
• If the stud spins, apply upward pressure under the control arm with the floor jack while loosening the nut.
• Do not place your hand between the control arm and knuckle.

Step 9: Separate the Ball Joint from the Steering Knuckle

• Install the ball joint separator between the lower control arm ball joint and steering knuckle.
• Tighten the ball joint separator until the taper pops free from the knuckle.
• A taper is a cone-shaped fit that locks the stud tightly into the knuckle.
• Use the hammer only on the side of the knuckle if needed, not on the threaded stud.
• Keep the knuckle supported with the bungee cord.

Step 10: Remove the Lower Control Arm Mounting Bolts

• Use an 18mm socket with an 18mm wrench, or a 21mm socket with a 21mm wrench, to remove the front and rear lower control arm mounting bolts.
• Use the breaker bar if the bolts are tight.
• Use penetrating oil and a wire brush if corrosion is present.
• Support the control arm with one hand as the last bolt comes out.

Step 11: Remove the Lower Control Arm Assembly

• Use a pry bar to gently work the control arm out of its mounting pockets.
• Remove the lower control arm from the vehicle.
• Compare it with the new front lower control arm assembly with ball joint before installation.

Step 12: Install the New Lower Control Arm

• Position the new front lower control arm assembly with ball joint into the subframe mounts.
• Install the front and rear mounting bolts by hand.
• Use an 18mm socket and 18mm wrench, or 21mm socket and 21mm wrench, to snug the bolts only.
• Do not fully tighten the control arm mounting bolts yet.

Step 13: Connect the Ball Joint to the Steering Knuckle

• Guide the ball joint stud into the steering knuckle.
• Use the floor jack under the control arm to raise it gently if needed.
• Install a new front lower ball joint nut by hand.
• Use a 21mm socket or 24mm socket to tighten the nut.
• Torque lower ball joint nut to 100 Nm (74 ft-lbs).

Step 14: Tighten Control Arm Bolts at Ride Height

• Use the floor jack under the lower control arm to raise the suspension until it is close to normal ride height.
• Ride height means the suspension is sitting like it would with the vehicle on the ground.
• Use a torque wrench with the correct socket and wrench to tighten the control arm mounting bolts.
• Torque front lower control arm mounting bolts to 140 Nm (103 ft-lbs).
• Torque rear lower control arm mounting bolts to 140 Nm (103 ft-lbs).
• This prevents twisting and early failure of the rubber bushings.

Step 15: Reconnect the Stabilizer Bar Link if Removed

• Install a new front stabilizer bar link nut by hand.
• Use an 18mm socket and 18mm wrench to tighten the stabilizer bar link nut.
• Torque stabilizer bar link nut to 65 Nm (48 ft-lbs).

Step 16: Reinstall Any Splash Shield Removed

• Position the shield back in place.
• Use a 10mm socket or 15mm socket to reinstall the fasteners.
• Torque small splash shield bolts snug only, about 9 Nm (80 in-lbs).

Step 17: Reinstall the Wheel

• Lift the wheel onto the hub.
• Start all lug nuts by hand to avoid cross-threading.
• Use the 22mm lug nut socket and 1/2-inch drive ratchet to snug the lug nuts in a star pattern.

Step 18: Lower the Vehicle and Torque the Lug Nuts

• Use the floor jack to lift the vehicle slightly off the jack stands.
• Remove the jack stands.
• Lower your Traverse fully to the ground.
• Use a torque wrench and 22mm lug nut socket to tighten the lug nuts in a star pattern.
• Torque wheel lug nuts to 190 Nm (140 ft-lbs).

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✅ After Repair

• ✅ Turn the steering wheel fully left and right while parked. Check that nothing rubs, pulls, or binds.
• ✅ Take a slow test drive around the block. Listen for clunks, pops, or knocking.
• ✅ Recheck lug nut torque after the first short drive.
• ✅ Get a professional wheel alignment immediately after replacing the lower control arm or ball joint.
• ✅ If ABS, traction control, or steering warning lights appear, inspect the ABS wire and brake hose routing before driving farther.

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💰 DIY vs Shop Cost

Shop Cost: $450-$850 per side (parts + labor + alignment)

DIY Cost: $120-$300 per side (parts only, alignment extra)

You Save: $250-$500 per side by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-2.5 hours per side plus alignment time.

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🎯 Ready to get started?

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