Parts for your 2022 Subaru Outback-Driveshafts

2022 Subaru Outback driveshafts: what they do and how to look after them

Driveshafts are absolutely fitted to the 2022 Subaru Outback. Technical sources including the Subaru Service Manual (STIS) for the BT-series Outback (MY2020–MY2024) list dedicated sections for Propeller Shaft, Front Axle (drive shafts) and Rear Axle, confirming a two-piece propeller shaft to the rear differential plus CV-type front and rear drive shafts. Genuine parts catalogues for MY22 Outback also catalogue a Propeller Shaft Assembly and front/rear drive shaft assemblies, and Subaru Symmetrical AWD technical literature notes torque transfer via a propeller shaft from the Lineartronic CVT to the rear diff.

On this Outback, the propeller shaft carries drive down the centre of the car to the rear differential, while CV (constant velocity) drive shafts at each corner pass torque to the wheels. Together they’re the quiet achievers behind the Outback’s sure-footed AWD feel, delivering smooth power with minimal vibration while the suspension moves through its travel.

Driveshafts aren’t a regular “consumable”, but they do appreciate a bit of attention at each scheduled service. A good workshop will check CV boots for splits, grease sling and loose clamps, feel for joint play, inspect the prop shaft’s centre support bearing and joints, and make sure the flange bolts are tight. They’ll also look for nicks from gravel or off-road use and keep an eye out for any transmission or diff seal leaks that can contaminate the joints.

If something’s amiss, the symptoms are usually clear: clicking on full lock when parking (front CV joints), a shudder on take-off, vibration around 80–110 km/h, or a dull clunk when shifting between Reverse and Drive. Fresh grease from a torn boot is a red flag—get it sorted before dirt ruins the joint. Many prop shafts are replaced as an assembly if the centre bearing or joints are worn, CV shafts can often be saved with an early boot replacement, but noisy or contaminated joints call for a complete shaft.

• Avoid hard acceleration at full steering lock.
• After beach runs or water crossings, rinse and inspect the boots.
• Keep tyre sizes and wear even across the set to reduce driveline stress.
• When replacing shafts, use quality parts, renew self-locking nuts/bolts, align flanges as marked and torque to the workshop manual specs, then road test for vibration.

Does the 2022 Outback have both a prop shaft and CV axles?

Yes. The AWD system uses a central propeller shaft from the CVT to the rear differential, plus CV-type drive shafts at all four corners to transfer torque to each wheel. That combo is core to Subaru’s Symmetrical AWD layout.

How long do driveshafts last, and what are the warning signs?

With intact boots and normal use, driveshafts can run well past 200,000 kilometres. Watch for clicking on turns, vibration at highway speeds, shudder on take-off, clunks when selecting gears, or grease flung around a wheel arch—those point to wear or a torn boot.

Can a torn CV boot be repaired, or is a full shaft replacement needed?

If caught early, a torn boot can be replaced and the joint re-greased. If water or grit has entered, or there’s already noise/play, a complete CV shaft is the smarter fix. Prop shafts are often serviced as complete assemblies when joints or the centre bearing are worn.