Parts for your 2011 Holden Colorado-Struts

2011 Holden Colorado: Do these utes run struts?

Short answer: no, a 2011 Holden Colorado (RC series) isn’t fitted with MacPherson struts. Up front it uses an independent double wishbone layout with torsion bars and separate shock absorbers, and out back it runs leaf springs with separate rear shocks. That means there’s no structural “strut” assembly as found in many passenger cars. This setup is confirmed in the Holden RC Colorado Service Manual (MY08–MY12, Suspension section), the Isuzu D‑MAX RA Workshop Manual (2007–2011, Front Suspension), and major aftermarket fitment guides/catalogues for shock absorbers used on RC‑series Colorado utes.

Why no struts? MacPherson struts combine the spring, damper, and a structural upright into one unit that also locates the wheel. They’re compact and cost‑effective for cars, but the Colorado’s ladder‑frame chassis and workhorse brief call for a tougher, serviceable design with more wheel travel and payload headroom. The double‑wishbone plus torsion bar front end suits off‑road articulation and heavy front‑axle loads (bull bars, winches), while the leaf‑spring rear keeps towing and tray loads in check. Separate shocks are easier to replace without disturbing ride height hardware or major alignment settings.

What should owners service instead of “struts”? Focus on the shocks, bushes, joints and alignment. If a parts listing says “strut” for this model, it’s usually shorthand for a front shock—check the VIN and part numbers to be sure you’re buying shocks, not a strut assembly that simply doesn’t exist on the RC Colorado.

• Inspect front and rear shocks for oil weep, dented bodies, worn mounts and reduced damping (excessive bounce after speed humps).
• Check upper/lower ball joints, control arm bushes, sway‑bar links and bushes, and steering tie‑rod ends for play or split boots.
• Confirm torsion bar ride height is even left to right, adjust only with proper procedures, then get a wheel alignment.
• At the rear, look at leaf‑spring bushes, shackles, U‑bolts (re‑torque after leaf work), rebound clips and bump stops.
• Replace shocks in axle pairs and choose valving matched to tyres, load and driving (touring vs. heavy towing vs. off‑road).

Technical sources referenced: Holden RC Colorado Service Manual (MY08–MY12, Suspension IFS/Rear), Isuzu D‑MAX RA Workshop Manual (2007–2011), and aftermarket fitment catalogues from major shock manufacturers covering Holden Colorado RC.

Popular questions about 2011 Holden Colorado “struts”

Does a 2011 Holden Colorado have struts or shocks?
It has shocks, not MacPherson struts. The front is double wishbone with torsion bars and separate shock absorbers, the rear is leaf springs with separate shocks. If a catalogue says “strut” for this model year, it’s using the term loosely.

What should be replaced if ride quality is rough on a 2011 Colorado?
Start with the shocks (front and rear). Also check control arm bushes, ball joints, sway‑bar links, and tyre pressures/tyre condition. If the front sits uneven, have the torsion bar ride height checked and perform a wheel alignment after any suspension work.

Can MacPherson struts be retrofitted to an RC Colorado?
Not practically. Converting a ladder‑frame ute from double wishbone/torsion bar to a true strut architecture would require re‑engineering the chassis pickup points and geometry. It’s far more sensible to upgrade shocks, bushes and springs within the factory layout.