Parts for your 2006 Toyota Caldina-Universal joints

2006 Toyota Caldina universal joints

Based on Toyota’s factory material—the T240-series Caldina New Car Features, the Repair Manual (2002–2007), and the Toyota Electronic Parts Catalogue—universal joints (U-joints) are fitted to 4WD/AWD variants of the 2006 Toyota Caldina (e.g., ST246W, AZT246W) as part of the two-piece propeller shaft with a centre support bearing. Front-wheel-drive-only models use constant velocity (CV) joints in the front driveshafts and do not have prop shaft U-joints. So, universal joints are relevant where the vehicle is AWD.

On AWD Caldinas, the universal joints allow the prop shaft to transmit power to the rear diff while accommodating driveline angles as the suspension moves. They’re the small but tough crosses at each end of the shaft that keep things smooth and quiet when they’re healthy—and cause shudders or clunks when they’re not. Most Caldina prop shaft U-joints are sealed-for-life, some aftermarket replacements offer grease nipples, but the factory approach is inspect-and-replace rather than regular greasing.

As part of routine servicing, a quick check every 20,000 km is smart: look for red rust dust around the bearing caps, split seals, or any play when twisting the shaft by hand with the car safely raised. A light, rhythmic squeak at low speed, a clunk on take-off, or a vibration that worsens under load are classic tells. If a U-joint’s worn, it’s best sorted early to avoid flogging out the yokes or taking the centre bearing with it.

Replacement on a Caldina’s AWD prop shaft is straightforward for a competent workshop. Mark the flanges for reassembly so the shaft goes back in phase, support the centre bearing, and use the correct torque on the flange bolts. If one joint’s failed, many techs will check the other end and the centre support bearing at the same time—doing them together can save repeat labour. While some Toyota shafts were originally staked, quality cross-kits with circlips are commonly used in repairs, otherwise, an exchange or rebuilt shaft is another tidy option. After refit, a road test for noise and vibration is essential, and any persistent tremor may point to incorrect phasing or a tired centre bearing.

• Common symptoms: take-off clunk, low-speed squeak, driveline vibration under load.
• Service tip: inspect U-joints and centre bearing during rear diff, gearbox, and mount checks.
• Good practice: replace with quality parts, keep phasing, and use factory torque specs.

Popular questions

Does every 2006 Toyota Caldina have universal joints?
No. Only AWD/4WD variants use U-joints on the propeller shaft. FWD-only models run CV joints at the front and don’t have a rear prop shaft, so there are no U-joints to service there.

What are the signs the Caldina’s U-joints need replacing?
A light squeak at parking speeds, a clunk when shifting from reverse to drive, or a vibration that picks up with throttle are the big three. Rusty dust at a bearing cap or any free play when the shaft is twisted by hand are also red flags.

Should U-joints be greased during service?
Most OEM Caldina U-joints are sealed and non-greasable. If your car has aftermarket greasable joints, a small shot of quality grease at regular services helps. Otherwise, rely on inspection and replace when wear shows.