Parts for your 2008 Toyota Mark x-Universal joints

2008 Toyota Mark X universal joints (U-joints)

Based on Toyota’s technical literature for the Mark X GRX120 series (model years including 2008), universal joints are fitted to the driveline and steering. The Toyota Repair Manual (Drivetrain/Propeller Shaft and Steering sections) and the Toyota Electronic Parts Catalogue list a propeller shaft assembly with spider bearings (U-joints) and a steering intermediate shaft with a U-joint. So universal joints are absolutely relevant to a 2008 Toyota Mark X, whether rear‑wheel drive or the “Four” all‑wheel drive variant.

On a 2008 Mark X, the U-joints do two key jobs. In the driveline, they sit at the ends of the propeller shaft, letting the shaft transmit torque while the rear suspension moves and the angles change. In the steering column, a compact U‑joint lets the intermediate shaft link the column to the rack through a slight angle, keeping steering feel tidy. When they’re healthy, you won’t notice them, when they’re not, you’ll feel vibrations, shudders on take‑off, or a notchy steering feel.

Most factory Mark X propeller‑shaft U-joints are staked and sealed, meaning they’re not designed for periodic greasing and are typically serviced by replacing the complete shaft or by specialist driveline reconditioning. That said, they should still be inspected during routine servicing. A quick check for free play, smooth articulation, and any rust‑coloured dust around the bearing caps goes a long way. For AWD “Four” models, remember there’s also a front propeller shaft with its own joints to check.

When replacement is needed, it pays to mark the shaft phasing before removal, use new flange hardware, and have the assembly balanced if a joint is pressed in by a driveline shop. After refit, torque the flange bolts to the factory spec and road‑test for any residual vibration. Steering intermediate‑shaft U‑joints are similarly sealed, if there’s stiffness or play, replace the shaft assembly and perform a steering angle centring check.

• Tell‑tale signs: driveline vibration at 60–100 km/h, clunk when shifting between R and D, take‑off shudder, squeak/chirp at low speed, or notchy/loose steering.
• Service tip: inspect at every service or 20,000 km, check the centre support bearing and mounts at the same time.
• Repair note: many Mark X U‑joints are non‑greaseable and staked—use a quality reman or complete shaft for best results.

Popular questions about 2008 Toyota Mark X universal joints

Are the Mark X propeller‑shaft U‑joints serviceable or sealed?

From factory they’re sealed and typically staked into the yokes, so there are no grease nipples. Toyota generally supplies the propeller shaft as an assembly. A good driveline shop can replace staked joints and re‑balance the shaft, but it’s a precision job best left to specialists.

What are the common symptoms of worn U‑joints on a 2008 Mark X?

Expect a shudder on take‑off, a thrum or vibration under load at highway speeds, a clunk when selecting drive or reverse, or a rhythmic squeak at low speed. On the steering side, a worn intermediate‑shaft U‑joint can feel notchy or vague around centre. Any of these signs warrant inspection before they escalate.

How often should the U‑joints be checked?

Have them inspected at each scheduled service (about every 10,000–20,000 km) or during any WOF/reg check. A quick look for play, dry caps, and damaged dust seals, plus checking the centre bearing and rear diff mount, helps keep the driveline smooth and quiet.