Parts for your 2020 Holden Commodore-Universal joints

2020 Holden Commodore universal joints — what’s actually fitted

Based on factory service information and parts catalogues for the ZB-series 2020 Holden Commodore (the Opel Insignia B under the skin), universal joints aren’t a relevant or fitted service item on this model. Front‑wheel‑drive variants use constant‑velocity (CV) joints on the driveshafts, and even the 3.6 AWD models run a balanced propeller shaft that uses CV joints and a rubber coupling rather than traditional cross‑type universal joints (U‑joints). There are no serviceable U‑joints specified for this vehicle.

Technical references that support this include: Holden/GM Service Information (SI) and TIS for ZB Commodore/Insignia B (2017–2020) describing front half‑shafts with inner tripod and outer Rzeppa CV joints, GM/Holden Electronic Parts Catalogue entries that list the AWD propeller shaft as an assembly with CV joints and no separate U‑joint components, and GKN Driveline material on the Twinster rear drive module used in the AWD V6, which pairs with a CV‑jointed propshaft for smooth torque delivery.

Why no U‑joints? The ZB Commodore is engineered primarily as a front‑drive platform, where CV joints are essential because they maintain constant rotational speed through large steering and suspension angles. For the AWD models, CV‑jointed prop shafts and rubber couplings deliver lower noise, vibration and harshness than traditional U‑joints, need no periodic greasing, and allow axial “plunge” to cope with body movement. That matches the refinement brief for a modern Euro‑designed liftback and wagon far better than the old-school U‑joint approach seen on ladder‑frame utes and RWD live‑axle layouts.

If you’re chasing a rattle or vibration and were thinking “universal-joints” on a 2020‑holden‑commodore, the smart move is to inspect the CV boots on the front half‑shafts, check the AWD prop shaft CVs and rubber coupling for splits, play or grease sling, and confirm driveline angles and mounts. Replacement on these components is typically done as assemblies as per GM SI, rather than pressing in individual U‑joints—because they’re simply not part of the design.

• Holden/GM SI and TIS: ZB Commodore/Insignia B driveline procedures (2017–2020)
• Holden/GM Electronic Parts Catalogue: ZB front half‑shafts and AWD propeller shaft assemblies (no serviceable U‑joint)
• GKN Driveline Twinster AWD technical overview (rear drive module and propshaft with CV joints)

Popular questions about 2020 Holden Commodore universal joints

Do 2020 Holden Commodores have universal joints?

No. FWD models use CV joints on the front half‑shafts, and AWD V6 models use a CV‑jointed propeller shaft with a rubber coupling. There are no serviceable cross‑type U‑joints listed by Holden/GM for the ZB.

What should be serviced instead of universal joints on a ZB Commodore?

Inspect CV boots for splits, check for grease fling, listen for clicking on lock (front CVs), and feel for vibration on load (AWD prop shaft CVs/coupling). Any play or torn boots usually means replacing the affected shaft, joint, or coupling assembly per GM procedures.

How do I tell if my AWD prop shaft CV or coupling is worn?

Look for rubber cracking on the coupling, balance weights missing on the shaft, or grease around the CVs. On road, a rhythmic vibration that changes with speed or a clunk on take‑off can point to a worn CV or coupling. A workshop can confirm with a lift inspection and run‑out check.