Parts for your 2008 Holden Colorado-Control arms

2008 Holden Colorado control arms — what they do and how to look after them

Yes — the 2008 Holden Colorado uses control arms. Technical sources including the Holden Colorado RC workshop manual (Front Suspension), the Isuzu TFR/TFS (D‑Max) service literature for the shared platform, and GM Holden/ACDelco parts catalogues all specify an independent double‑wishbone front end with upper and lower control arms and torsion bars. The rear is a live axle with leaf springs (no control arms there), but the front definitely relies on control arms for geometry and wheel control.

On the 2008 Colorado, the front upper and lower control arms locate each front wheel, set camber and caster, and let the suspension move smoothly. Each arm pivots on chassis-mounted bushes and connects to the steering knuckle via a ball joint. They cop a hiding on corrugations and tracks, so keeping them in good nick makes a big difference to steering feel, tyre life, and braking stability.

As part of regular servicing, it’s smart to inspect the control arm bushes and ball joints every 20,000 km or at least at each tyre rotation. Look for perished or torn bushes, split ball-joint boots, play in the joint, and any shiny witness marks from arm-to-frame contact. Common symptoms of wear include clunks over bumps, vague steering, pulling, shimmy under braking, and feathered or rapidly worn tyres.

When replacement’s due, many owners choose complete arms because they come with new bushes and ball joints pre-fitted, saving press work and workshop time. If the arms themselves are straight and corrosion-free, pressing in new OE rubber or polyurethane bushes is also a solid option. After any control arm, bush, or ball joint work, a four-wheel alignment is essential, torque the pivot bolts at normal ride height to avoid preloading the bushes. If the ute has a lift kit, an aftermarket upper arm can help recover caster and ball-joint angle for better on-centre feel and tyre wear.

For beach runs, towing, and outback driving, rinse the underbody after salt exposure and inspect more often — grit and salt are brutal on boots and bushes. Stick with quality parts from known suppliers, and if one side’s gone, doing both sides together keeps geometry balanced. Done right, the Colorado’s front end stays tight, tracks straight, and keeps tyres wearing evenly.

• Key checks: bush condition, ball-joint play, boot integrity, alignment, and unusual tyre wear.
• Always re-align after work and torque pivots at ride height.

FAQs

Does a 2008 Holden Colorado have upper and lower control arms?
It does. The RC Colorado front suspension is independent double-wishbone with torsion bars, using both upper and lower control arms. The rear is leaf-sprung without control arms.

How long do Colorado control arm bushes last if it tows or sees beach work?
Anywhere from 60,000–150,000 km depending on use and environment. Heavy towing, corrugations, and salt exposure shorten life. Regular rinsing, inspections, and timely replacement keep the front end tight.

Do they need a wheel alignment after control arm or bush replacement?
Absolutely. Changing arms or bushes alters camber and caster. Book a proper alignment and ensure pivot bolts are torqued at ride height to prevent bush pre-load and weird tyre wear.