Parts for your 2002 Toyota Crown-Ball joints

2002 Toyota Crown ball joints — what they do and how to look after them

Ball joints are absolutely relevant to the 2002 Toyota Crown. Toyota’s New Car Features documentation for the S170-series Crown (JZS17x/UZS17x) specifies a double-wishbone front suspension, which uses upper and lower ball joints at each front wheel. The Toyota Repair Manual for the S170 platform, along with Toyota’s Electronic Parts Catalogue (PNC 43330 “Ball Joint Assy, Front Lower”), also details inspection and replacement of these joints. The rear multi-link suspension uses spherical joints within the arms as well. In short: the 2002 Crown is fitted with ball joints and depends on them for safe steering and ride quality.

On this model, the ball joints act as pivot points between the control arms and the steering knuckle. They let the front wheels move up and down over bumps while still turning left and right, keeping the Crown’s ride plush and steering precise. When they’re in good nick, alignment stays stable, tyres wear evenly, and the car tracks straight without fuss.

Worn ball joints, however, can cause clunks over bumps, vague steering, and uneven tyre wear. Left too long, excessive play can upset braking stability and, in extreme cases, risk separation. That’s why they deserve a regular look during servicing.

Recommended care is straightforward: inspect the ball-joint dust boots at each service or at least every 20,000 km. Split or perished boots let water and grit in, which accelerates wear. With the wheel lifted, a mechanic can check for play using a pry bar or dial indicator against the knuckle. Any looseness, binding, rust-staining, or torn boots calls for replacement.

• Typical signs it’s time: clunks or creaks over speed humps, steering shimmy, wandering at highway speed, uneven or rapid inner-edge tyre wear, or grease weeping from a torn boot.

When replacing, quality OEM or reputable aftermarket joints are the go. Many S170 Crowns use a bolt-on lower ball joint with a tapered stud into the knuckle—fit new hardware and a fresh cotter pin, and torque everything to the factory spec. Avoid heating the joint or hammering on the knuckle, use the correct separator tool. After any ball-joint work, a wheel alignment is a must. It’s sensible to replace ball joints in axle pairs to keep steering feel consistent side to side.

Allow roughly 1–1.5 hours per front side plus alignment time, depending on corrosion and access. Treat them well and, under normal Aussie and Kiwi driving, they often see well over 100,000 km before attention is needed.

Popular questions about 2002 Toyota Crown ball joints

Does the 2002 Toyota Crown have ball joints front and rear?
The front definitely does: it’s a double-wishbone setup with upper and lower ball joints at each wheel. Out back, the Crown’s multi-link suspension uses spherical joints within its arms. Many rear joints are serviced as complete control arms rather than individual press-out ball joints, depending on the specific S170 variant.

How long do ball joints last on a Crown?
With normal use they frequently last 100,000–200,000 km. Rough roads, big potholes, heavy wheels, or lowered suspension can shorten that. Keep an eye on boot condition and tyre wear patterns—catching a split boot early can save a joint before grit chews it out.

Will worn ball joints fail a WOF or roadworthy?
Yes. In NZ WOF checks and Australian roadworthy inspections, excess play or torn boots are grounds for failure. The remedy is replacement followed by a proper alignment. Sorting them restores safe steering and keeps the tyres happy.