Parts for your 2016 Subaru Impreza-Universal joints

2016 Subaru Impreza universal joints — what they do and how to look after them

For the 2016 Subaru Impreza (GJ/GP series), universal joints are relevant and fitted. Technical sources confirm this: the Subaru Service Manual for the GJ/GP Impreza (2012–2016) details a two-piece propeller shaft using sealed, non-serviceable universal joints, with the assembly replaced as a unit when worn. Subaru’s OEM parts catalog for AWD variants likewise lists a complete propeller shaft assembly incorporating U-joints. The front and rear wheel halfshafts use constant-velocity (CV) joints, but the driveline to the rear differential relies on universal joints in the prop shaft.

On this Impreza, the universal joints sit in the propeller shaft running down the centre of the car, carrying torque from the transmission to the rear diff at varying angles as the suspension moves. Their job is to keep the torque delivery smooth while the shaft changes angle and length slightly under load. Subaru uses sealed, staked U-joints here, designed for long life without periodic greasing.

There’s no scheduled lubrication for these joints, so care is mostly about inspection and acting early on symptoms. At regular services, a good shop will check for free play at the front and rear flanges, look for reddish dust around the bearing caps, torn seals, or sling marks from dried grease. On the road, drivers might notice a clunk taking off, a droning vibration between about 60–90 km/h under load, or a shudder on overrun. Any of these can point to a worn U-joint (or sometimes the centre bearing), and it’s best not to keep pushing on—continued driving can stress the diff and gearbox.

• Replacement on this model typically means swapping the complete propeller shaft, as the factory U-joints are staked and not intended to be rebuilt. Some driveline specialists can refurbish with circlip-style joints, but that’s a workshop call.
• When replacing, mark the flanges to preserve balance, use new hardware where specified, torque to spec, and inspect the centre support bearing and mount at the same time.
• After fitting, a careful test drive to check for vibration is essential, wheel alignment isn’t needed, but re-checking fasteners after a few hundred kilometres is smart practice.

Looked after with sensible inspections and prompt attention to early signs, the Impreza’s universal joints usually go the distance for many years and kilometres of everyday Kiwi and Aussie driving.

Popular questions about 2016 Subaru Impreza universal joints

Does a 2016 Subaru Impreza have universal joints?
Yes. AWD 2016 Impreza models use universal joints in the two-piece propeller shaft to the rear differential. The wheel axles use CV joints, but the prop shaft relies on U-joints to handle angle changes in the driveline.

Are the Impreza’s U-joints serviceable or greaseable?
The factory U-joints are sealed and staked, so there are no grease nipples and no scheduled lubrication. When worn, Subaru specifies replacing the complete propeller shaft. Some driveline specialists can rebuild shafts with serviceable joints, but that’s not the OEM approach.

What symptoms suggest a failing U-joint on an Impreza?
Common signs include a clunk when shifting from reverse to drive, a shudder or vibration around 60–90 km/h under load, and a chirp or drone that changes with speed. Underneath, rust-coloured dust near the bearing caps or noticeable play at the flanges also points to wear.