🔧 Focus - Front Ball Joint Replacement

This repair replaces the front lower ball joints on your Focus. The ball joint is the pivot point between the lower control arm and steering knuckle, allowing the front wheels to steer and move with the suspension.

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

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⚠️ Safety & Precautions

• ⚠️ Ball joints are steering and suspension safety parts. A loose or failed ball joint can cause loss of control.
• ⚠️ Always support your Focus with jack stands. Never work under a vehicle supported only by a floor jack.
• ⚠️ Keep hands clear when separating the ball joint from the steering knuckle. Parts can release suddenly.
• ⚠️ Do not allow the steering knuckle to hang by the brake hose or ABS wire.
• ⚠️ Replace ball joints in pairs if both sides show wear, torn boots, or looseness.
• ⚠️ 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 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• 19mm lug nut socket
• Breaker bar 1/2-inch drive
• Ratchet 1/2-inch drive
• Ratchet 3/8-inch drive
• Torque wrench 1/2-inch drive
• Torque wrench 3/8-inch drive
• 13mm socket
• 15mm socket
• 18mm socket
• 21mm socket
• 15mm wrench
• 18mm wrench
• 21mm wrench
• Torx T40 bit socket
• Flat trim clip tool
• Ball joint separator (specialty)
• Ball joint press kit (specialty)
• Snap ring pliers (specialty)
• Hammer 24oz
• Pry bar 18-inch
• Needle-nose pliers
• Paint marker
• Penetrating oil spray
• Bungee cord 24-inch

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front lower ball joints - Qty: 2
• Front lower ball joint pinch bolts and nuts - Qty: 2
• Front lower ball joint retaining snap rings - Qty: 2
• Front lower control arm-to-ball joint fasteners - Qty: 2 sets

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📋 Before You Begin

• Park your Focus on level ground and set the parking brake.
• Place wheel chocks behind the rear wheels.
• Loosen the front wheel lug nuts before lifting the vehicle.
• Spray penetrating oil on the ball joint pinch bolt area, lower control arm fasteners, and sway bar link fasteners.
• Plan for a wheel alignment after this repair, especially if the control arm or knuckle position changes.
• For a first-time DIYer, replacing the complete lower control arm can be easier than pressing the ball joint out and in.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen the Front Lug Nuts

• Use the 19mm lug nut socket and 1/2-inch breaker bar to loosen each front lug nut about 1/2 turn.
• Do not remove the lug nuts yet.
• Break them loose on the ground.

Step 2: Raise and Support the Vehicle

• Use the floor jack to lift the front of your Focus from the front jacking point.
• Place jack stands under the front support points.
• Lower the vehicle gently onto the jack stands.
• Keep the floor jack nearby for supporting suspension parts.

Step 3: Remove the Front Wheels

• Use the 19mm lug nut socket and 1/2-inch ratchet to remove the lug nuts.
• Remove both front wheels and place them flat on the ground.

Step 4: Support the Steering Knuckle

• Place the floor jack lightly under the lower control arm near the ball joint.
• Raise the jack only enough to support the suspension weight.
• The steering knuckle is the large metal part that holds the wheel bearing and brake assembly.

Step 5: Move the ABS Wire and Brake Hose Away

• Use the flat trim clip tool to release any ABS wire clips attached near the lower strut or control arm area.
• Use the 13mm socket and 3/8-inch ratchet if a brake hose bracket must be loosened for room.
• Do not disconnect the brake hose.
• Use the bungee cord to support the brake hose or wire if needed.

Step 6: Remove the Ball Joint Pinch Bolt

• Locate the pinch bolt at the bottom of the steering knuckle where the ball joint stud enters the knuckle.
• Use the 15mm socket and 3/8-inch ratchet to remove the pinch bolt nut if equipped.
• Use the Torx T40 bit socket or 15mm socket as needed to hold or turn the bolt, depending on bolt style.
• Slide the pinch bolt out of the steering knuckle.
• A pinch bolt clamps the knuckle tightly around the ball joint stud.

Step 7: Separate the Ball Joint from the Steering Knuckle

• Use the ball joint separator to separate the ball joint stud from the steering knuckle.
• If needed, use the 18-inch pry bar to gently push the lower control arm downward.
• Use the 24oz hammer to tap the knuckle near the ball joint bore only if it is stuck.
• Do not strike the threaded ball joint stud if you plan to reuse any part.
• Support the steering knuckle with the bungee cord so it does not pull on the brake hose or axle.

Step 8: Remove the Ball Joint from the Lower Control Arm

• Inspect how the ball joint is attached to the lower control arm.
• If it is bolted or riveted, use the 13mm socket, 15mm socket, or 18mm socket as fitted to remove the fasteners.
• If it is pressed into the control arm, use the snap ring pliers to remove the retaining snap ring first.
• Use the ball joint press kit to press the old ball joint out of the lower control arm.
• A ball joint press is a heavy C-clamp tool that pushes the joint in or out without damaging the arm.

Step 9: Prepare the Control Arm Bore

• Use the needle-nose pliers to remove any loose pieces of old retaining clip or boot material.
• Use the paint marker to mark the new ball joint orientation if the part has a directional notch or flat.
• Wipe the mounting bore clean by hand.
• Do not grind or enlarge the hole in the lower control arm.

Step 10: Install the New Ball Joint

• If the ball joint is pressed in, use the ball joint press kit to press the new ball joint squarely into the lower control arm.
• Install the new retaining snap ring using snap ring pliers.
• If the ball joint is bolted in, install the new fasteners by hand first.
• Use the 13mm socket, 15mm socket, or 18mm socket with the correct torque wrench to tighten the ball joint-to-control arm fasteners to the specification supplied with the new part.
• Start all bolts before tightening.

Step 11: Reconnect the Ball Joint to the Steering Knuckle

• Use the floor jack to raise or lower the lower control arm until the ball joint stud lines up with the steering knuckle.
• Guide the ball joint stud fully into the knuckle by hand.
• Use the 18-inch pry bar carefully if extra downward movement is needed.
• Make sure the groove in the ball joint stud lines up with the pinch bolt hole.

Step 12: Install the New Pinch Bolt

• Slide the new pinch bolt through the steering knuckle and ball joint stud groove.
• Install the new nut by hand.
• Use the 15mm socket, Torx T40 bit socket, and 3/8-inch torque wrench as needed to tighten the pinch bolt to Torque to 63 Nm (46 ft-lbs).
• Confirm the ball joint stud cannot pull out of the knuckle.

Step 13: Reinstall ABS Wire and Brake Hose Brackets

• Use the flat trim clip tool or your fingers to snap ABS wire clips back into place.
• If removed, use the 13mm socket and 3/8-inch torque wrench to tighten the brake hose bracket bolt to Torque to 10 Nm (89 in-lbs).
• Turn the steering by hand and make sure the brake hose and ABS wire do not stretch or rub.

Step 14: Repeat on the Other Side

• Repeat Steps 4 through 13 on the opposite front ball joint if replacing both sides.
• Do both sides if both joints are worn or the boots are cracked.

Step 15: Reinstall the Front Wheels

• Place each wheel back on the hub.
• Install the lug nuts by hand first to avoid cross-threading.
• Use the 19mm lug nut socket and 1/2-inch ratchet to snug the lug nuts in a star pattern.

Step 16: Lower the Vehicle and Torque the Lug Nuts

• Use the floor jack to lift your Focus slightly off the jack stands.
• Remove the jack stands.
• Lower the vehicle fully to the ground.
• Use the 19mm lug nut socket and 1/2-inch torque wrench to tighten the lug nuts in a star pattern to Torque to 135 Nm (100 ft-lbs).

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✅ After Repair

• ✅ Turn the steering wheel fully left and right while parked. Listen for binding or popping.
• ✅ Road test slowly first. Listen for clunks and check that the steering feels normal.
• ✅ Recheck the ball joint pinch bolt area visually after the test drive.
• ✅ Get a front wheel alignment after the repair.
• ✅ Recheck lug nut torque after 25-50 miles.

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💰 DIY vs Shop Cost

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

DIY Cost: $60-$220 (parts only)

You Save: $390-$630 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.5-4.0 hours.

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🎯 Ready to get started?

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