Parts for your 2012 Subaru Impreza-Universal joints

2012 Subaru Impreza universal joints: what they do and when to replace them

Technical references confirm universal joints are used on the 2012 Subaru Impreza. The Subaru Factory Service Manual for the GP/GJ series (Driveline/Axle and Steering sections) specifies a two‑piece propeller shaft with staked universal joints on AWD models, and an intermediate steering shaft that uses cross‑type universal joints. Subaru’s electronic parts catalogue lists these as assembly items rather than greaseable service parts, and mainstream repair guides (e.g., Haynes for 2012–2016 Impreza) describe inspection of prop shaft U‑joints and replacement of the complete shaft if play or binding is found. That means universal joints are absolutely relevant on this model—on every AWD car for the prop shaft, and on all cars for the steering column.

On a 2012 Subaru Impreza, universal joints (often called U‑joints) let the prop shaft and steering shaft transmit torque smoothly even when the angles change with suspension and body movement. In the driveline, they keep the AWD system happy on rough roads and through big bumps, in the steering, they connect the column to the rack without introducing slop.

Servicing is mostly about inspection, because Subaru fits sealed, non‑greaseable, staked U‑joints to the propeller shaft and steering intermediate shaft. There isn’t a set replacement interval, but it’s smart to check them at regular services (say every 10,000–15,000 km). Look and listen for tell‑tales, and don’t ignore a fresh vibration after tyres or diff oil changes—angles and balance matter.

• Common symptoms: a clunk on take‑off or shifting from reverse to drive, a cyclic vibration between 60–100 km/h, a chirp/squeak at low speed, rust “bleed” around bearing caps, or any free play when you twist the prop shaft by hand. For the steering U‑joint: a sticky or notchy spot, poor self‑centring, or corrosion at the joint.
• Replacement notes: on most 2012 Imprezas the prop shaft U‑joints aren’t designed to be pressed out and greased, Subaru sells the shaft as an assembly. Many driveline specialists in Australia and New Zealand can rebuild the shaft with serviceable circlip‑type joints, which can be a cost‑effective fix. Always mark the flanges for alignment, use new flange bolts if specified, and check the centre support bearing while you’re there. For the steering intermediate shaft, replace the shaft if any binding or play is present.
• Prevention tips: keep underbody wash‑downs part of coastal maintenance, ensure engine and diff mounts are in good nick to reduce shock loads, and recheck prop‑shaft bolt torque after transmission or diff work.

FAQs

Does a 2012 Subaru Impreza have universal joints?

Yes. AWD models have universal joints in the two‑piece propeller shaft, and all variants use a universal‑jointed intermediate shaft in the steering column.

In some overseas markets there were front‑wheel‑drive trims without a rear prop shaft, those still use a steering U‑joint, so the part remains relevant either way.

Can the universal joints on a 2012 Impreza be greased?

From the factory, the prop shaft and steering U‑joints are sealed and not fitted with grease nipples, so there’s no routine greasing. If a joint develops play or binds, the typical fix is replacing the shaft assembly.

A driveline specialist can often rebuild the prop shaft with serviceable circlip‑type U‑joints, which then become greaseable for future maintenance.

How long do they last and what does replacement cost?

With normal use they commonly last well over 150,000 km and can go much farther, but lots of short trips, water crossings, or lifted suspension can shorten life.

In Australia and New Zealand, expect a new OEM prop shaft to be on the higher side, while specialist rebuilds are usually more budget‑friendly. Labour is modest (often 1–2 hours), and the steering intermediate shaft is typically quicker to swap.