Parts for your 2017 Lexus Is-Universal joints

Universal joints on the 2017 Lexus IS

Universal joints are absolutely relevant on the 2017 Lexus IS. Lexus/Toyota technical literature (Lexus IS XE30 Repair Manual – Drivetrain/Propeller Shaft, Steering – Column/Intermediate Shaft, and the Lexus Electronic Parts Catalogue) shows the rear propeller shaft on rear‑wheel drive models uses staked, non‑serviceable universal joints, and the steering intermediate shaft uses a U‑joint as well. AWD variants also feature a prop shaft to the transfer/differential alongside CV-jointed half‑shafts. So yes—this model does have universal joints in key driveline and steering locations.

On the IS, the driveline U‑joints allow the prop shaft to transmit torque while the suspension and gearbox/diff move through their angles. That little cross-and-bearing assembly keeps everything smooth when the car squats on take‑off, cruises the motorway, or deals with the odd bump on a back road. In the steering, the U‑joint lets the column angle down to the rack without binding, giving that clean, direct feel Lexus owners expect.

Servicing is mostly about inspection, because Toyota/Lexus typically uses sealed, non‑greaseable U‑joints on the prop shaft. During scheduled maintenance, a tech should:

• Check for play, notchiness, or rust bleed at the U‑joint caps, and inspect the centre support bearing (where fitted).
• Listen/feel for driveline shudder on take‑off, vibration at highway speed, or a dull clunk on shift—classic U‑joint wear clues.
• Verify driveline angles and look for torn dust seals.

If any play or binding is found, Lexus guidance is to replace the propeller shaft sub‑assembly rather than pressing in a new joint, as the OE joints are staked. Replacement tips (per Lexus service procedures):

• Match‑mark the flanges before removal to preserve balance and orientation.
• Use new self‑locking fasteners where specified and torque to spec, then recheck after a short road test.
• If vibration persists, have the shaft dynamically balanced and confirm the centre bearing alignment.

Steering U‑joints should turn freely with zero roughness. Any stiffness, corrosion, or free play calls for replacement of the intermediate shaft assembly. Keeping these joints healthy pays off with quieter running, sharper steering feel, and longer diff and gearbox mount life—exactly what an IS should deliver.

Does a 2017 Lexus IS actually have U‑joints?

Yes. The rear propeller shaft on RWD models uses sealed U‑joints, and there’s a U‑joint in the steering intermediate shaft. AWD models add a front prop shaft as well. This layout is documented in the Lexus IS (XE30) Repair Manual and the Lexus EPC.

What symptoms point to worn U‑joints?

Drivers might notice a clunk when shifting from reverse to drive, a droning vibration at 70–100 km/h, or a shudder on take‑off. On inspection, a technician may find free play at the joint caps or a notchy feel when the shaft is articulated. Any of these are grounds for replacement.

Can the IS U‑joints be greased, or do they need replacing?

The factory prop shaft U‑joints are sealed and not designed for greasing. If they’re worn or noisy, the correct repair is replacing the propeller shaft assembly (and renewing the relevant fasteners), then checking balance and alignment as per Lexus procedures.