Parts for your 2013 Subaru Impreza-Universal joints

2013 Subaru Impreza universal joints (U-joints) — what they do and how to look after them

Based on the Subaru Factory Service Manual for the GJ/GP series (2012–2016) Driveline &, Axle—Propeller Shaft section, the Subaru Genuine Parts catalogue, and common repair literature such as the Haynes manual, the 2013 Subaru Impreza with Symmetrical AWD uses a two‑piece propeller shaft featuring universal joints and a centre support bearing. The front and rear drive shafts to the wheels use constant‑velocity (CV) joints, not U‑joints. So, for this model, universal joints are absolutely relevant to the AWD propeller shaft.

On an AWD 2013 Impreza, universal joints sit at each end of the propeller shaft and allow the shaft to transmit torque to the rear differential while the driveline moves with suspension travel. They’re the flexible couplers that keep the shaft spinning smoothly even when angles change, helping maintain that planted Subaru feel on wet Kiwi backroads or long Aussie highway runs.

From the factory, these U‑joints are non‑greasable and generally treated as non‑serviceable, most Subaru documentation specifies replacing the propeller shaft as an assembly if a joint is worn. That said, reputable driveline specialists in Australia and New Zealand can often rebuild or retrofit serviceable U‑joints, provided the yokes and phasing are kept spot‑on and the shaft is rebalanced.

It’s smart to have the driveline inspected during regular servicing—especially once the car is north of 120,000 km or if it tows or sees rough roads. Tell‑tale signs a U‑joint is on the way out include:

• Vibration or a droning hum that rises with road speed, often worse under load
• A metallic clunk when shifting from reverse to drive or on throttle tip‑in
• Chirping or squeaking at low speeds
• Visible rust powder around the bearing caps or noticeable free play

If replacement’s needed, a workshop will mark flange positions for balance, check joint phasing, torque the flange bolts correctly, and inspect the centre support bearing and mount. It’s also a good time to look over the rear diff pinion seal and the prop shaft’s slip joint for any weeping. For owners keen on longevity, gentle launches, avoiding harsh clutch dumps, and keeping tyres matched in size and wear all help reduce driveline stress.

Bottom line: the Impreza’s U‑joints are small parts doing a big job. Catch wear early and the car stays smooth, quiet, and happy through the kilometres.

Popular questions

Does a 2013 Subaru Impreza have universal joints?
Yes—on AWD models (the norm in AU/NZ). They’re on the two‑piece propeller shaft running to the rear differential. The wheel drive shafts use CV joints, not U‑joints.

What are the signs a U‑joint is failing on a 2013 Impreza?
Look for speed‑related vibration, a clunk on take‑off, chirping at low speeds, or rust dust near the bearing caps. Any free play when the shaft is unloaded is also a red flag.

Can the U‑joints be greased or replaced on their own?
Factory joints are sealed and typically replaced with the shaft assembly. However, many driveline shops can rebuild the shaft with serviceable U‑joints and then rebalance it, which can be a cost‑effective option.