Parts for your 2008 Toyota Mark x-Control arms

2008 Toyota Mark X Control Arms — What They Do and When to Service Them

Control arms are absolutely relevant to the 2008 Toyota Mark X (X120 series). Technical sources including Toyota’s New Car Features (NCF) for the Mark X and the Toyota Electronic Parts Catalogue (EPC) describe a front double-wishbone setup (which uses upper and lower control arms) and a rear multi-link suspension with multiple arms/links controlling wheel motion. Repair manuals and mainstream parts catalogues also list front upper/lower arms, ball joints and rear lateral/toe arms for the 2008 GRX120/121. So, yes—the Mark X is fitted with control arms front and rear.

On this model, the control arms are the unsung heroes connecting the chassis to the hubs, keeping the wheels pointing where they should while the suspension moves. Up front, the double-wishbone design uses upper and lower arms to hold camber and caster steady for confident steering. Down the back, the multi-link layout uses several arms to manage toe and camber as the car rides over bumps or loads up in a corner. The result is that trademark Toyota balance—quiet, tidy and predictable.

Because the arms pivot on bushes and ball joints, they wear over time—especially with Aussie and Kiwi road conditions. Telltale signs include:

• Clunks or knocks over bumps, vague or wandering steering
• Uneven or rapid tyre wear, shudder under braking
• Rear-end steer or instability on rough surfaces

Good servicing practice is to inspect control arm bushes and ball joints at regular services or at least every 20,000 km (often checked with a WOF/roadworthy). Look for cracked, torn or leaking (hydraulic) bushes, perished ball joint boots, and any free play. If the vehicle has hit a kerb or pothole hard, check them straight away.

When replacement’s due, quality matters. Many Mark X arms allow separate bush and ball joint replacement, but some owners prefer complete arm assemblies to refresh everything in one go. Replace side-to-side in pairs where practical, torque the through-bolts at normal ride height to avoid preloading the bushes, and always finish with a proper wheel alignment—camber/toe can shift when arms are changed. While you’re there, eyeball sway bar links, inner/outer tie rods, and strut top mounts, as worn mates can mimic the same noises.

Driving style and conditions dictate lifespan, but it’s common to see bushes need attention anywhere from 80,000–150,000 km. Keeping tyres at correct pressures, avoiding big potholes, and addressing any new noises early will help the Mark X keep its clean steering feel and even tyre wear.

Does the 2008 Toyota Mark X have control arms?

Yes. Toyota’s NCF and EPC for the X120 Mark X specify a front double-wishbone suspension (upper and lower control arms) and a rear multi-link arrangement with several control links/arms. Aftermarket and OE parts listings back this up with dedicated front and rear arms, bushes and ball joints for 2008 models.

How long do control arm bushes typically last on a Mark X?

Roughly 80,000–150,000 km is common, depending on road quality, load, and driving style. City kerbs, corrugations, and heat accelerate wear. Regular inspections and timely alignment help stretch their service life.

Can the bushes be replaced, or do the whole arms need changing?

Both options exist. Many Mark X arms accept press-in bushes and separate ball joints, which can be cost-effective. If multiple components are tired, a complete arm assembly saves time and resets everything at once. Either way, finish the job with a wheel alignment.