🔧 Tacoma - Front Control Arm Replacement

This guide covers replacing the front upper and lower control arms on your Tacoma. Control arms hold the wheel in the correct position, and worn bushings or ball joints can cause clunks, wandering steering, uneven tire wear, or poor alignment.

Difficulty Level: Advanced | Estimated Time: 4-7 hours

Assumption: This procedure is for the front control arms on your 4WD Tacoma.

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⚠️ Safety & Precautions

• ⚠️ Always support your Tacoma with jack stands before working underneath it. A jack alone is not safe.
• ⚠️ The front coilover assembly is under spring tension. Do not disassemble the spring or shock assembly unless using a proper spring compressor.
• ⚠️ The front alignment will change after this repair. Your Tacoma needs a professional wheel alignment afterward.
• ⚠️ Do not loosen or tighten final control arm pivot bolts while the suspension is hanging. Final tightening must be done at normal ride height.
• ⚠️ If the ABS wire or brake hose is stretched, stop and reposition the steering knuckle before continuing.
• ⚠️ 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
• Safety glasses
• Mechanic gloves
• 1/2-inch drive breaker bar
• 1/2-inch drive torque wrench
• 3/8-inch drive ratchet
• 10mm socket
• 12mm socket
• 14mm socket
• 17mm socket
• 19mm socket
• 21mm socket
• 22mm socket
• 24mm socket
• 10mm wrench
• 12mm wrench
• 14mm wrench
• 17mm wrench
• 19mm wrench
• 22mm wrench
• 24mm wrench
• Needle-nose pliers
• Side cutters
• Ball joint separator (specialty)
• Pickle fork ball joint separator (specialty)
• Dead blow hammer
• Pry bar 18-inch
• Paint marker
• Tape measure
• Penetrating oil
• Anti-seize compound

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front upper control arm assembly - Left: 1, Right: 1
• Front lower control arm assembly - Left: 1, Right: 1
• Front lower ball joint mounting hardware - Qty: 1 kit
• Front control arm cam bolt kit - Qty: 1 kit
• New cotter pins - Qty: 4
• New flange nuts - Qty: as needed
• Wheel alignment - Qty: 1 service

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📋 Before You Begin

• Park your Tacoma on level ground and set the parking brake.
• Place wheel chocks behind the rear tires.
• Loosen the front lug nuts slightly before lifting the truck.
• Spray penetrating oil on the upper control arm bolts, lower control arm cam bolts, sway bar links, and ball joint fasteners.
• Use a paint marker to mark the position of the lower control arm cam bolts. These marks help you get close enough to drive to the alignment shop.
• A cam bolt is an offset alignment bolt used to adjust camber and caster on the front suspension.
• A ball joint separator is a tool that safely pops the tapered ball joint stud loose from the steering knuckle.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and Support the Front End

• Use a 21mm socket and breaker bar to loosen the front wheel lug nuts one turn.
• Use a floor jack to lift the front of your Tacoma at the front crossmember.
• Place jack stands under the frame rails.
• Lower the truck gently onto the jack stands.
• Use the floor jack to lightly support the lower control arm on the side you are working on.
• Use a 21mm socket to remove the lug nuts and front wheel.
• Keep lug nuts in a small tray.

Step 2: Remove Skid Plate if Equipped

• Use a 12mm socket or 14mm socket to remove the front skid plate bolts, depending on the installed plate.
• Lower the skid plate and set it aside.
• Reinstall later and tighten skid plate bolts snugly with the same socket.

Step 3: Disconnect Brake Hose and ABS Wire Brackets

• Use a 10mm socket to remove the ABS wire bracket bolts from the upper control arm and steering knuckle area.
• Use a 12mm socket to remove brake hose bracket bolts where they attach to the control arm or knuckle area.
• Move the hose and wire aside gently.
• Do not open the brake hydraulic line.

Step 4: Disconnect the Sway Bar Link

• Use a 17mm socket and 17mm wrench to remove the sway bar link nut from the lower control arm.
• If the stud spins, hold the stud with the correct wrench while turning the nut with the 17mm wrench.
• Move the sway bar link out of the way.
• During installation, tighten the sway bar link nut to Torque to 74 Nm (55 ft-lbs).

Step 5: Separate the Upper Ball Joint

• Use needle-nose pliers to straighten and remove the upper ball joint cotter pin.
• Use a 19mm wrench or 19mm socket to loosen the upper ball joint castle nut a few turns, but do not remove it yet.
• Use a ball joint separator to pop the upper ball joint loose from the steering knuckle.
• Once loose, remove the castle nut fully with the 19mm wrench or socket.
• Support the steering knuckle so it does not pull on the brake hose or ABS wire.
• During installation, tighten the upper ball joint nut to Torque to 110 Nm (81 ft-lbs), then install a new cotter pin.

Step 6: Remove the Upper Control Arm

• Use a 19mm socket and 19mm wrench to remove the long upper control arm pivot bolt and nut.
• Slide the bolt out carefully.
• Remove the upper control arm from the frame pocket.
• Install the new upper control arm in the same direction as the old one.
• Apply a light coat of anti-seize compound to the bolt shank using gloves.
• Insert the pivot bolt and start the nut by hand.
• Do not fully tighten yet. Final tightening must happen at ride height.
• Final upper control arm pivot bolt torque is Torque to 118 Nm (87 ft-lbs).

Step 7: Support the Lower Control Arm and Coilover

• Use the floor jack to support the lower control arm near the ball joint area.
• Lift just enough to take pressure off the lower shock bolt.
• Do not lift the truck off the jack stand.

Step 8: Remove the Lower Shock Bolt

• Use a 19mm socket and 19mm wrench to remove the lower shock mounting bolt and nut from the lower control arm.
• Push the shock eye upward slightly by hand if needed.
• During installation, tighten the lower shock bolt to Torque to 135 Nm (100 ft-lbs).

Step 9: Separate the Lower Ball Joint from the Lower Control Arm

• Use a paint marker to mark the lower ball joint position if the joint is staying on the truck.
• Use a 19mm socket to remove the lower ball joint mounting bolts from the lower control arm.
• Use a pry bar 18-inch to gently separate the lower control arm from the lower ball joint.
• Support the steering knuckle so it does not hang by the brake hose.
• During installation, tighten lower ball joint mounting bolts to Torque to 160 Nm (118 ft-lbs).

Step 10: Mark the Lower Control Arm Cam Bolts

• Use a paint marker to draw a line across each cam washer and the frame bracket.
• Mark the front and rear lower control arm cam bolts separately.
• These marks are only temporary. Your Tacoma still needs a wheel alignment.

Step 11: Remove the Lower Control Arm

• Use a 22mm socket and 22mm wrench, or 24mm socket and 24mm wrench if fitted, to loosen the front and rear lower control arm cam bolt nuts.
• Remove the cam bolt nuts, cam washers, and bolts.
• Use a pry bar 18-inch to guide the lower control arm out of the frame brackets.
• If a cam bolt is seized inside the bushing sleeve, use penetrating oil and a dead blow hammer to work it loose.
• Install the new lower control arm into the frame brackets.
• Install the cam bolts, cam washers, and nuts in the same direction as removed.
• Align the paint marks as closely as possible.
• Do not fully tighten yet. Final tightening must happen at ride height.
• Final lower control arm cam bolt torque is Torque to 207 Nm (153 ft-lbs).

Step 12: Reconnect the Lower Ball Joint

• Use the floor jack to raise or lower the new lower control arm until the lower ball joint lines up.
• Install the lower ball joint mounting bolts by hand first to avoid cross-threading.
• Use a 19mm socket to tighten the lower ball joint mounting bolts.
• Tighten the lower ball joint mounting bolts to Torque to 160 Nm (118 ft-lbs).

Step 13: Reinstall the Lower Shock Bolt

• Use the floor jack to align the shock eye with the lower control arm bracket.
• Insert the lower shock bolt by hand.
• Use a 19mm socket and 19mm wrench to tighten the lower shock bolt.
• Tighten the lower shock bolt to Torque to 135 Nm (100 ft-lbs).

Step 14: Reconnect the Upper Ball Joint

• Guide the upper ball joint stud into the steering knuckle by hand.
• Install the castle nut by hand first.
• Use a 19mm socket or 19mm wrench to tighten the castle nut.
• Tighten the upper ball joint nut to Torque to 110 Nm (81 ft-lbs).
• Use needle-nose pliers to install a new cotter pin through the castle nut and stud.
• If the cotter pin hole does not line up, tighten the nut slightly more. Do not loosen it to line up the hole.

Step 15: Reinstall Sway Bar Link, Brake Hose, and ABS Brackets

• Use a 17mm socket and 17mm wrench to reconnect the sway bar link to the lower control arm.
• Tighten the sway bar link nut to Torque to 74 Nm (55 ft-lbs).
• Use a 10mm socket to reinstall ABS wire bracket bolts.
• Tighten the ABS bracket bolts snugly by hand with the 10mm socket.
• Use a 12mm socket to reinstall brake hose bracket bolts.
• Tighten the brake hose bracket bolts snugly by hand with the 12mm socket.
• Check that the hose and wire are not twisted, stretched, or rubbing.

Step 16: Repeat on the Other Side

• Use the same tools and steps to replace the front control arms on the opposite side.
• Control arms should be replaced in pairs when wear is similar side to side.

Step 17: Set Suspension to Ride Height Before Final Tightening

• Reinstall the front wheels using a 21mm socket.
• Snug the lug nuts by hand with the 21mm socket.
• Use the floor jack to lift the truck slightly and remove the jack stands.
• Lower your Tacoma onto the ground.
• Bounce the front bumper a few times to settle the suspension.
• Use a tape measure to confirm both sides sit evenly.
• Now use the torque wrench to final-tighten the upper control arm pivot bolts to Torque to 118 Nm (87 ft-lbs).
• Use the torque wrench to final-tighten the lower control arm cam bolts to Torque to 207 Nm (153 ft-lbs).
• Use the torque wrench and 21mm socket to tighten the wheel lug nuts to Torque to 113 Nm (83 ft-lbs).

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✅ After Repair

• ✅ Turn the steering wheel fully left and right while parked. Check for rubbing, pulling hoses, or clicking.
• ✅ Test drive slowly first. Listen for clunks and check that the steering returns normally.
• ✅ Drive directly to a wheel alignment shop. The lower cam bolts set alignment angles and must be adjusted professionally.
• ✅ After 50-100 miles, recheck accessible fasteners and lug nut torque with a torque wrench.
• ✅ If the steering wheel is off-center, tires squeal, or the truck pulls, do not keep driving except to the alignment shop.

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💰 DIY vs Shop Cost

Shop Cost: $1,400-$2,400 (parts + labor + alignment)

DIY Cost: $500-$1,100 (parts only, plus alignment)

You Save: $700-$1,300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 4-6 hours.

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🎯 Ready to get started?

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