Parts for your 2006 Toyota Highlander-Universal joints

2006 Toyota Highlander universal joints: what’s fitted and how to look after them

Based on Toyota’s factory Repair Manual for the 2006 Highlander (Drivetrain/Propeller Shaft section) and the Toyota Electronic Parts Catalogue for XU20-series Highlander/Kluger, universal joints are fitted on AWD (all-wheel drive) models as part of the rear propeller shaft assembly. Front-wheel drive (2WD) models do not use universal joints. This aligns with independent repair guides (Haynes/Chilton) that show a two-piece prop shaft with U‑joints and a centre support bearing on AWD variants.

Not used on 2WD: On front‑wheel drive Highlanders there’s no rear propeller shaft. Drive is sent to the front wheels via half‑shafts that use constant velocity (CV) joints, which manage large steering and suspension angles while maintaining constant rotational speed. That’s why universal joints aren’t relevant on 2WD models of the 2006 Highlander/Kluger.

Fitted on AWD: On AWD Highlanders, the universal joints sit at each end of the rear propeller shaft, allowing the shaft to run smoothly between the transfer output and rear differential as the body moves over bumps and the suspension articulates. Their job is to handle torque while accommodating small changes in angle, helping to keep vibrations down and power delivery tidy.

Most factory U‑joints on this model are sealed-for-life units on the prop shaft, meaning there are no grease nipples. In practical terms, that makes inspection the key maintenance step: check for rust-coloured dust at the bearing caps, split seals, or play when twisting the shaft by hand with the vehicle safely supported. A rhythmic squeak at low speed, a clunk shifting between drive and reverse, or a speed-related vibration under load are all classic wear symptoms.

When replacement’s due, many dealers supply the complete propeller shaft assembly. A driveline specialist can often press out the worn joints and install quality serviceable U‑joints with circlips, which future-proofs the shaft with greaseable caps. If you do go serviceable, a light grease every 10,000–15,000 km during routine servicing is a good thing—use a suitable lithium-complex grease and don’t overfill.

Tips for a clean job: always mark the flanges before removal to preserve phasing and balance, support the shaft to protect the centre bearing, and torque the flange bolts to the specification in the Toyota manual. After refit, a quick road test to check for any new vibrations is smart. While you’re under there, cast an eye over the centre support bearing and rear diff flange seal for leaks or wear.

• Common signs of tired U‑joints: clunk on take‑off, squeak that tracks wheel speed, driveline shudder on acceleration.
• Service pointers: inspect each service, replace sealed, worn joints or upgrade to greaseable units, maintain correct phasing on reassembly.

Popular questions about 2006 Toyota Highlander universal joints

Does every 2006 Highlander have universal joints?

No. AWD models do, at the front and rear of the rear propeller shaft. 2WD (front‑wheel drive) models don’t have a rear prop shaft and therefore don’t use universal joints, relying on CV joints in the front axles instead.

If unsure, check for a rear differential and a prop shaft running down the centre tunnel—if it’s there, it’s AWD and has U‑joints.

How often should the U‑joints be serviced or replaced?

Factory joints are typically sealed and need no greasing, but they should be inspected during routine servicing. Replace if there’s play, noise, or dried, rusty dust around the caps. If upgraded to greaseable U‑joints, a light grease every 10,000–15,000 km is sensible.

There’s no fixed replacement interval—condition and symptoms drive the call.

What does replacement usually cost?

Costs vary with approach. Having a driveline shop replace individual U‑joints is often the most cost‑effective path, while fitting a complete new propeller shaft from the dealer is pricier but straightforward.

Expect labour and parts to scale with whether you’re fitting serviceable joints, addressing the centre bearing at the same time, and local labour rates in Australia or New Zealand.