Parts for your 2010 Holden Colorado-Steering bushes

2010 Holden Colorado steering bushes — are they a thing?

Short answer: steering bushes as a standalone “rack mount bush” part aren’t used on the 2010 Holden Colorado (RC series, 2008–2012). Technical documentation from the Holden Colorado RC Workshop Manual (Steering section), GM Global EPC for RC Colorado, and the Isuzu TFR/TFS (D‑MAX platform) service information all show the vehicle runs a recirculating-ball steering box with a pitman arm, centre/drag link, idler arm and tie-rod ends — not a rack-and-pinion. Because there’s no steering rack, there are no rack-mount bushes to replace.

What some folks call “steering bushes” on other vehicles usually refers to the rubber or polyurethane bushes that hold a steering rack to the subframe. On the RC Colorado, the job of guiding and supporting the linkage is handled by the steering box and the idler arm assembly. The idler arm itself uses an internal bearing or bush at its pivot, but it’s typically serviced as a complete idler arm assembly, or specifically as an “idler arm bush” kit — not as generic “steering bushes”. That’s why a category like 2010-holden-colorado/steering-bushes isn’t really relevant for this ute.

If a 2010 Colorado has vague steering or a shimmy through the wheel, the usual suspects are:

• Idler arm assembly (including its pivot bush/bearing)
• Tie-rod ends and the centre/drag link
• Pitman arm play at the steering box output
• Front suspension control arm and sway bar bushes (they affect steering feel, even though they’re suspension parts)
• Steering column lower shaft joints

Practical servicing tips for owners and workshops in Aus/NZ: inspect the idler arm for vertical play and any clunk when rocking the tyre at 3 and 9 o’clock, check tie-rod ends for free movement or split boots, and look for uneven tyre wear that points to looseness in the linkage. Most OE idler arms are sealed, while some aftermarket replacements are greaseable — if it’s got a nipple, give it a quality chassis grease at service intervals. When replacing any steering linkage, always perform a wheel alignment afterwards and torque fasteners to the factory spec from the RC Workshop Manual.

Bottom line: there’s no conventional “steering rack bush” on the 2010 Colorado. If the goal is to tighten up the steering, focus on the idler arm assembly, linkage joints, and front-end bushes rather than chasing a non-existent rack mount bush.

Popular questions

Does a 2010 Holden Colorado have steering rack bushes?
No. The RC Colorado uses a recirculating-ball steering box, not a rack-and-pinion, so there are no rack-mount bushes to replace. Look instead at the idler arm assembly and the rest of the steering linkage if the wheel feels loose.

What should be replaced if there’s free play in the steering?
Start with an inspection of the idler arm (common wear point), then check the tie-rod ends, centre/drag link and the pitman arm. Any looseness here will show up as wander, shimmy or clunks, and an alignment should follow any replacement.

Are the idler arm bushes serviceable on their own?
Often the idler arm is replaced as a complete assembly. Some aftermarket options provide a bush or bearing kit, but fitment quality and longevity vary — many workshops prefer the full arm for a reliable fix. Always verify parts against the RC series specifications.