Can the lower ball joint on my 1996-2002 4Runner really snap?

Short answer: Yes. Lower ball joints on 1996-2002 4Runners can break and let the front wheel collapse, sometimes with little warning. If yours is original or the miles are high, have it inspected and replaced with Toyota OEM joints. Check for the 2001-2002 ball joint recall.

Symptom: Clunks over bumps, loose or wandering steering, uneven tire wear, or in the worst case a front wheel that suddenly folds under the truck, often at low speed or while turning.

What to check first

1. Run your VIN for open recalls, especially on a 2001 or 2002.
2. Have the ball joints checked for play with the front end lifted.
3. Ask when the lower ball joints were last replaced and whether they were OEM.
4. Listen for clunks over bumps and in turns.
5. If you replace them, torque all four bolts to spec.

Likely causes

1. Worn or defective lower ball joint. The lower ball joint is the pivot that holds the bottom of the front wheel's steering knuckle to the lower control arm. On these 4Runners it can wear and break with little warning, letting the wheel fold under the truck.
2. Aftermarket or worn-out replacement joints. Owners recommend Toyota OEM joints and replacing them about every 100k miles.
3. Wrong bolt torque. The four bolts that hold the joint to the knuckle need the correct torque. Over-tightening can snap a bolt, and driving on three bolts is unsafe.

What it usually costs

Owners didn't post firm prices. Toyota OEM joints cost more than cheap aftermarket ones, but owners in these threads recommend them.

Is it safe to keep driving?

No, if there's play, clunking or the joints are old and unknown. A broken lower ball joint drops the wheel and you can lose steering. Get it inspected before driving far.

DIY or shop?

Possible for experienced DIYers with a torque wrench and ball joint tools. Most owners should use a shop, since a mistake here is dangerous.

Recalls, bulletins and complaints in plain words

• Recall: NHTSA recall 05V225000 covers certain 2001-2002 4Runners: the lower ball joint surface may have been scratched during manufacturing and can wear and loosen, which increases steering effort. If your car is part of this recall, the dealer fixes it for free. Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 523 keyword-matched complaints for Toyota 4Runner 1996–2002 (of 1959 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-04; keywords: ball joint, control arm, suspension, wheel (came, fell, separat), collapse, front end). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In looking for advice on a new build. Bought this 2002 4RUNNER for my daughter and the lower ball joint broke, and now I'm going t9 make it an off-road build. what are the recommended parts to use and what are things to avoid doing?I have looked at the Total Chaos Fabricator parts on Reddit r/4Runner, an owner bought a 2002 4Runner for their daughter and the lower ball joint broke. Replies said if it stays a daily driver, use only Toyota OEM lower ball joints and change them about every 100k miles.
• In Upper and lower ball joints for a '97 SR5 - URGENT! (Ball joint failure in the driveway!) on Reddit r/4Runner, a '97 SR5 owner's ball joint snapped in the driveway and they urgently needed genuine OEM upper and lower ball joints.
• In 2004 Toyota 4runner, V8, ball joint failure questions. on Reddit r/MechanicAdvice, a 2004 V8 4Runner owner said they'd been told that, unlike earlier 4Runners, their year usually shows warning signs like loose steering and noises first, while on earlier model years the wheel can just pop out when the joint fails.
• In Lower ball joint - bolt sheared off in threads on Reddit r/4Runner, a 3rd-gen owner snapped one of the four lower ball joint bolts by over-tightening it using the wrong torque spec. Replies said the bolts are 80 Nm, not to drive on three bolts, and how to remove the broken piece.

Quick tip

Don't gamble on old lower ball joints in a 3rd-gen 4Runner. Check the recall, inspect them, and use OEM parts.

Vehicle focus: Toyota 4Runner third generation, 1996-2002.

Safety / mechanic note

A broken ball joint can make you lose control of the truck. Don't drive on suspected bad joints or with a missing bolt. Verify with a mechanic.