Parts for your 2018 Toyota Crown-Universal joints

2018 Toyota Crown universal joints: what they are, what they do, and when to service them

Universal joints are absolutely relevant on a 2018 Toyota Crown. Toyota’s technical literature for the S220-series Crown (2018 launch) lists a propeller shaft assembly that incorporates universal joints, and the steering column uses an intermediate shaft with a U‑joint as well. Referenced sources include: Toyota Crown (S220) Repair Manual sections covering “Propeller Shaft” and “Steering Column,” and the Toyota Electronic Parts Catalogue (Group 37: Propeller Shaft, Group 45: Steering Column), where the propeller shaft is described as an assembly with a universal joint and centre support bearing. These sources show the U‑joints are integral to both driveline and steering on this model.

On the driveline, the U‑joints sit at either end of the Crown’s propeller shaft, allowing smooth power transfer from the transmission to the rear differential while the shaft changes angle with suspension movement. They keep things turning true even under load, preventing binding and reducing vibration. In the steering column, a compact U‑joint lets the column change angle between the wheel and rack, giving precise, consistent steering feel.

Most 2018 Crown prop shafts are supplied as balanced, sealed assemblies. The U‑joints are typically non‑greaseable and not intended to be disassembled, Toyota directs replacement of the shaft assembly if a joint is worn or rough. That said, specialist driveline shops can rebuild and re-balance props with serviceable joints where appropriate.

During routine servicing, it’s smart to check for early signs of wear. With the car safely raised, a tech can feel for play at each flange, rotate the shaft to detect notchiness, and inspect the centre bearing. A short road test can confirm any speed‑related vibration or a tell‑tale clunk on take‑off.

• Common symptoms: a dull clunk when shifting from reverse to drive, a chirp or squeak at low speeds, or a buzz/vibration between 60–100 km/h under load.
• Typical service approach: if play is found or the joint feels gritty, replace the propeller shaft assembly, renew the centre bearing if perished, and re‑torque flange fasteners to spec. Mark the flanges before removal and keep the shaft in phase.
• Steering U‑joint: if there’s notchiness or stiffness around centre, replace the intermediate shaft, do not attempt to lubricate it.

Driving on a failing U‑joint risks further damage to the shaft, flange yokes, or even the transmission tail housing. Catching it early keeps the Crown quiet, smooth, and happy on Aussie and Kiwi roads.

Popular questions about 2018 Toyota Crown universal joints

How long do the Crown’s universal joints usually last?

On sealed, non‑serviceable joints, it’s common to see well over 150,000 km if the vehicle isn’t lifted or abused and the shaft stays in balance. Harsh roads, corrosion, or fluid leaks onto the joints can shorten that, so periodic inspection during services is a good idea.

Can just the U‑joint be replaced, or does the whole prop shaft need changing?

Toyota supplies the propeller shaft as a complete, balanced unit for this model. In dealer service, the assembly is typically replaced. Some driveline specialists can rebuild with circlip‑type joints and re‑balance the shaft, but quality and warranty depend on the rebuilder.

What noises point to a worn U‑joint on a Crown?

A faint chirp that speeds up with road speed, a clunk on take‑off or when shifting from reverse to drive, or a droney vibration at highway speeds under load are classic signs. Any of these warrant an inspection of the prop shaft and centre bearing.