Parts for your 2016 Subaru Impreza-Universal joints

2016 Subaru Impreza universal joints (U-joints) — what they do and how to look after them

Based on the Subaru GJ/GP Impreza Service Manual (Driveline/Propeller Shaft section) and the Subaru Technical Information System, the 2016 Subaru Impreza (as sold in Australia and New Zealand with Symmetrical AWD) uses a two-piece propeller shaft fitted with cross-type universal joints and a centre support bearing. The wheel-end driveshafts are constant velocity (CV) joints, but the prop shaft between the transmission and rear differential relies on sealed U-joints. Subaru’s parts catalogues for this model list the propeller shaft assembly as a unit with integral, non-greaseable U-joints. Independent guides such as the Haynes Repair Manual for 2012–2016 Impreza echo the same design.

On this Impreza, the U-joints let the prop shaft transmit torque while the suspension moves and the driveline sits at slight angles. They’re sealed-for-life components, so there are no grease nipples to service at routine intervals. That doesn’t mean they’re forgotten — it just changes how they’re cared for.

As part of regular servicing, a quick driveline check pays off. With the car safely lifted, a tech should feel for play at each end of the prop shaft, spin it by hand, and listen for dry or gritty movement. On the road, a worn U-joint often shows up as a droning vibration that gets worse with speed, a clunk on take-up, or a shudder under load. Catching those early can prevent collateral wear to the centre bearing or the rear diff flange.

Because the factory U-joints are staked into the prop shaft on many Subarus of this generation, Subaru’s service literature typically specifies replacing the entire propeller shaft assembly if a U-joint is faulty. Some driveline specialists can rebuild them, but that’s outside normal dealer procedure. If replacing the assembly, mark component orientations, use new self-locking nuts/bolts where specified, and torque to spec. After refit, a road test across a range of speeds helps confirm any vibration is gone.

• Tell-tale symptoms: speed-related vibration, clunk on shifts, chirping or metallic squeak at low speed.
• Inspection rhythm: include a driveline check every 20,000–30,000 km or at any vibration complaint.
• Prevention: keep underbody shields intact, replace torn prop shaft dust shields, and fix oil leaks that can wash out joint lubrication.

For owners in Australia and New Zealand, the takeaway is simple: yes, the 2016 Impreza runs U-joints on its prop shaft, they’re sealed units, and timely checks plus proper replacement practices keep the AWD system smooth and quiet for the long haul.

Popular questions

Does a 2016 Subaru Impreza have U-joints or just CV joints?

The 2016 Impreza has both: CV joints at the front and rear wheel axles, and universal joints on the two-piece propeller shaft running to the rear differential. The U-joints are sealed and generally serviced by replacing the prop shaft assembly if worn.

What are the common signs of a failing U-joint on this model?

Look for a speed-related vibration, a clunk when shifting from drive to reverse or on throttle take-up, and a dry metallic squeak at low speeds. On inspection, any looseness or roughness when rotating the prop shaft by hand is a red flag.

Can the U-joints be greased or replaced individually?

From the factory, the Impreza’s prop shaft U-joints are non-greaseable and often staked in. Subaru procedures typically call for replacing the complete propeller shaft assembly. Some driveline specialists can rebuild them, but that’s not the standard dealership approach.