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Parts for your 2015 Holden Commodore-Rack boots
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2015 Holden Commodore rack-boots
Technical documentation confirms the 2015 Holden Commodore runs rack-and-pinion steering with flexible bellows-style rack-boots on each end of the steering gear. The Holden VF Service Manual (Steering – Rack and Pinion), GM Global Service Information (GSI) for 2013–2017 Commodore, and the Holden/GM Electronic Parts Catalogue list these as steering gear bellows/boots for VF. Whether the vehicle is fitted with electric power steering (common on VF sedans) or hydraulic assist in some variants, the rack still relies on boots to seal and protect the inner tie rods and rack bar.
On a 2015 Commodore, the rack-boots (often called gaiters or bellows) do a deceptively big job. They keep grit, water, and road spray off the inner tie rod joints and the rack itself, while holding the right amount of grease around those moving parts. They also let the rack breathe as it moves lock-to-lock without sucking in dirt. On hydraulic racks, a damaged boot can even act like a tell-tale, swelling with fluid if an internal seal is weeping. On electric racks, there’s no power-steering fluid, but a split boot still invites corrosion, knocks, and premature inner tie rod wear.
For servicing, it’s smart practice to inspect both boots at every scheduled service or at least every 10,000–15,000 kilometres, especially if the car sees gravel roads, heavy rain, or the odd track day. What to look for:
- Cracks, splits, or perishing of the rubber
- Loose or missing clamps
- Grease fling or dirt tracked inside the bellows
- For hydraulic variants: oily residue or a swollen boot
Replacement is straightforward for someone handy with spanners, but the details matter. Use quality boots and proper band clamps rather than cable ties. Avoid twisting the bellows during fitment, seat the breather sections correctly, and re-grease the inner joint as specified. Mark the tie rod length before removal and refit to the same measurement, then book a wheel alignment—any disturbance of the tie rods can nudge toe settings, and the Commodore’s steering feel deserves to be spot on. If one boot has perished, the other may not be far behind, so replacing them as a pair is often good value.
For owners chasing long-term reliability, sticking with OE-spec components or a well-known aftermarket kit keeps the steering quiet, precise, and happy with Aussie and Kiwi road conditions.
Popular questions
Does a 2015 Holden Commodore have rack-boots?
Yes. The VF-series Commodore uses a rack-and-pinion steering gear that includes flexible bellows-style rack-boots on both sides. They’re there to shield the inner tie rods and rack bar from contamination and to retain lubrication. This applies to electric and hydraulic assisted variants alike.
What are the signs the rack-boots need replacing?
Common red flags include visible splits or cracks, loose or missing clamps, and dirt or grease evident inside the bellows. On hydraulic systems, an oily, swollen boot can indicate an internal seal leak. Left too long, a torn boot can accelerate inner tie rod wear and invite steering play or noise.
Do rack-boots need an alignment after replacement?
It’s wise to schedule a wheel alignment any time the tie rods are disturbed. Even if the length is carefully marked and refitted, a quick check ensures toe is spot-on and the Commodore tracks straight with the right steering feel.
