Parts for your 2004 Holden Commodore-Steering bushes

2004 Holden Commodore steering bushes — what they do and when to replace

Steering bushes are absolutely relevant on a 2004 Holden Commodore. Both VY Series II and early VZ models run a rack-and-pinion setup with rubber insulators (bushes) mounting the steering rack to the front crossmember. This is documented in the Holden VY/VZ Service Manual under Steering — Rack and Pinion, which details the steering gear mounting insulators and their fitment/torque procedure. Aftermarket technical catalogues from well-known brands also list rack-and-pinion mounting bush kits for VT–VZ Commodore (1997–2006), confirming the part’s use on the 2004 model year.

On this Commodore, the steering bushes cushion the rack, keep it centred under load and tame noise, vibration and harshness. When they’re healthy, the steering feels direct and predictable. As the rubber ages, gets oil-soaked, or cops a hard life, the rack can shift on the cradle. That’s when the steering starts to feel vague and the front end may knock over bumps.

Common signs the steering rack bushes are due:

• Clunk or thud from the front when hitting potholes or speed humps
• Steering that feels loose on centre or wanders on the motorway
• Shudder under light braking that isn’t a brake rotor issue
• Uneven or rapid front tyre wear despite correct pressures
• Visible cracking, perishing or oil swelling of the bushes

There’s no fixed replacement interval, but a quick check at every service is smart, especially on higher‑kilometre cars or those with power steering fluid leaks. Power steering oil can swell factory rubber, so any leak should be fixed pronto.

Replacement is straightforward workshop work:

1. Safely support the vehicle and access the rack mounts.
2. Mark rack position, then remove the rack mounting bolts.
3. Swap the bushes (rubber for OE feel, polyurethane for durability), ensuring correct orientation.
4. Refit and torque the mounts to factory spec, then carry out a wheel alignment.

Owners chasing longevity often opt for polyurethane bushes. They resist oil and last longer, though they can pass a touch more vibration into the cabin. Rubber stays quiet and comfy but may need earlier replacement if exposed to fluid. Either way, keeping the steering rack properly bushed pays off with steadier tracking, sharper response and happier tyres on a 2004 Commodore.

Popular questions about 2004 Holden Commodore steering bushes

Do 2004 Commodores actually have steering bushes?
Yes. The VY/VZ platform uses rubber insulators to mount the rack-and-pinion steering gear to the front crossmember. This arrangement is covered in Holden’s service literature for the steering assembly and mirrored by multiple aftermarket catalogues that supply rack mounting bush kits for VT–VZ models.

How long do the steering bushes last, and what wears them out?
Service life varies with driving, kilometres and fluid condition. Heat, age and power steering fluid leaks accelerate rubber degradation. Many cars make it well past 150,000 km before obvious symptoms, but a quick inspection at each service helps catch cracking, oil swelling or excessive rack movement early.

Is a wheel alignment needed after replacing the bushes?
Yes. Even though the tie rods aren’t altered, shifting the rack’s position when the mounts are disturbed can nudge toe settings. A post‑repair alignment ensures the steering wheel sits straight and tyre wear stays even.