Parts for your 2004 Holden Commodore-Driveshafts

2004 Holden Commodore driveshafts — what they do and how to look after them

Based on GM Holden VY/VZ Series Service Manuals and parts catalogues for the 2004 model year, the 2004 Holden Commodore is fitted with driveshafts. Every variant uses a propeller shaft (tailshaft) to send power from the gearbox to the rear differential. Independent rear suspension (IRS) models also use CV-jointed rear half-shafts between the diff and wheel hubs. These assemblies are documented in the factory Driveline/Propeller Shaft and Rear Drive Axle sections, as well as in Ellery’s and Gregory’s VT–VZ workshop manuals, which outline inspection and service procedures for the tailshaft, universal joints, centre support bearing and CV joints.

On this Commodore, the tailshaft’s job is simple but vital: transfer torque smoothly and quietly. Most sedans and wagons run a two-piece tailshaft with a centre support bearing to control vibration. IRS models add a pair of rear driveshafts (half-shafts) with CV joints to accommodate suspension movement while keeping power delivery consistent through corners and bumps.

As part of routine servicing, it’s smart to check the driveline every 10,000–15,000 km or annually. Look for split CV boots on IRS half-shafts, play in universal joints, cracks or sagging in the centre support bearing rubber, and any missing balance weights on the tailshaft. Factory U-joints are typically sealed-for-life, if they’re rough or loose, replacement is the go. Keep an ear out for a thud on take-off, a rhythmic vibration at 60–90 km/h, or a shudder under load—classic signs the centre bearing, U-joints or CVs need attention.

When removing the tailshaft, mark the flanges so it goes back in the same orientation to maintain balance. Use correct torque on flange bolts, and replace any single-use hardware if specified in the service info. If the tailshaft has a dent or the slip joint is excessively worn, a specialist driveline shop can often rebuild and balance it, otherwise, a quality exchange unit is a reliable fix. For IRS half-shafts, replace any torn boots promptly to avoid CV contamination, once a joint is noisy or notchy, replacement is usually more economical than a repair.

• Common symptoms: clunk on shift or take-off, vibration at highway speeds, clicking on turns (IRS), grease spray near a boot.
• Typical fixes: centre bearing, U-joints, CV boots/joints, professional balancing, correct bolt torque.

Popular questions about 2004 Holden Commodore driveshafts

Does a 2004 Commodore have driveshafts?
Yes. All models use a tailshaft from the transmission to the rear diff. IRS variants also have CV-jointed rear half-shafts from the diff to each wheel hub. Live-axle utes don’t have external rear CV half-shafts but still rely on the tailshaft.

How often should the centre bearing and CV boots be checked?
They’re best inspected at each regular service (about every 10,000–15,000 km or annually). Replace the centre bearing if there’s play, cracking in the rubber, or a take-off shudder. Replace any torn CV boots immediately to protect the joint.

Can a vibrating tailshaft be repaired, or does it need replacing?
Minor imbalance can usually be corrected by a driveline specialist with a balance and new U-joints. If the tube is dented or the slip/yoke is worn, a rebuilt or new tailshaft is typically the most reliable solution.