Parts for your 2011 Holden Colorado-Thrust bearing

2011 Holden Colorado thrust bearing — what’s fitted and how to look after it

Based on the Holden RC Colorado Workshop Manual (2008–2012, Clutch section), GM Global Service Information for the manual transmission, and major clutch catalogues used in Australia and New Zealand (Exedy and Aisin), the 2011 Holden Colorado with a manual gearbox is fitted with a clutch release bearing, commonly called a thrust bearing. Those same sources confirm automatic models don’t use a clutch thrust bearing (they use a torque converter), although the engine itself does have crankshaft thrust bearings that control end-float and aren’t a routine service item. So, for manual Colorados, a “thrust bearing” is absolutely relevant, for autos, it isn’t part of the clutch system.

On a manual 2011 Colorado, the thrust bearing sits on the gearbox input sleeve and is pushed by the clutch fork and hydraulics. Its job is simple but vital: it lets the rotating pressure plate be pushed back smoothly when the pedal’s pressed, so gears select cleanly without graunching. When healthy, it’s quiet and silky. When it’s worn, drivers often notice a rumble, chirp, or whirr that appears with the pedal depressed and fades when the pedal is released. Left too long, it can score the pressure plate fingers and cause clutch drag or a heavy, notchy pedal.

The thrust bearing isn’t a periodic “service” item on its own, it’s inspected and replaced whenever the gearbox is out, which is why it’s typically included in a full clutch kit. Best practice on a Colorado is to renew the thrust bearing anytime the clutch disc and cover are being replaced, even if it still feels okay by hand. While in there, check the guide tube for scoring, the fork and pivot ball for wear, the release spring clip tension, and the pilot bearing/bush. A tiny smear of high-temp moly grease on the guide tube and fork pivot is fine, don’t grease the bearing face or contaminate the friction surfaces. If your variant uses a concentric slave/release unit, any leakage or stiffness means replace the whole assembly.

After reassembly, bleed the clutch hydraulics carefully, confirm free-play and engagement height, and road-test for quiet operation when the pedal’s pressed. For vehicles that tow, work off-road, or clock high kilometres, replacing the thrust bearing proactively with each clutch job saves a second gearbox pull-down.

• Typical wear signs: noise with the pedal depressed, a rough feel in the pedal, clutch drag or hard gear selection.
• Recommended: replace with every clutch kit, inspect related parts and seals, follow torque specs and alignment steps from the workshop manual.

Technical sources referenced: Holden RC Colorado Workshop Manual (Clutch section, removal/installation and inspection), GM Global Service Information for the manual gearbox and clutch actuation, Exedy and Aisin AU/NZ clutch catalogues listing release (thrust) bearings for RC Colorado kits, and the Isuzu 4JJ1 engine workshop manual detailing crankshaft thrust bearing/end-float specifications.

Does every 2011 Colorado have a thrust bearing?

Manual Colorados do — it’s the clutch release (thrust) bearing. Automatic models don’t use a clutch thrust bearing because they have a torque converter instead. The engine itself still has crankshaft thrust bearings, but those aren’t part of routine clutch servicing.

What noise points to a failing thrust bearing?

A chirp, squeal, or rumble that starts when the clutch pedal is pressed and fades when it’s released is classic thrust-bearing noise. If the noise is present with the pedal up and disappears when you press it, look elsewhere (e.g., gearbox input bearing). Any noise plus a heavy or gritty pedal is a strong hint the bearing and related clutch parts are due.

Should the thrust bearing be replaced on its own?

It can be, but it’s smarter to replace it as part of a complete clutch kit while the gearbox is out. Labour is the big cost, doing the disc, pressure plate, pilot bearing/bush, and checking the fork, pivot and guide tube at the same time prevents repeat work and restores the whole system.