Parts for your 2012 Subaru Outback-Driveshafts

2012 Subaru Outback driveshafts — what they do and how to look after them

Based on Subaru’s own technical literature — the Factory Service Manual for 2010–2014 Outback/Legacy (see “Propeller Shaft” section) and Subaru’s parts catalogue listing a “propeller shaft assembly” for 2012 Outback models — this vehicle absolutely uses driveshafts. In Subaru-speak you’ll see both “propeller shaft” (transmission to rear differential) and “front/rear drive shafts” (CV axle shafts at the wheels), all working together in the Symmetrical AWD system.

On a 2012 Outback, the propeller shaft runs down the middle, sending torque to the rear diff, while the CV shafts at each corner deliver power to the wheels. This setup keeps traction balanced on wet roads, gravel and long touring, which is why these wagons feel planted across Aussie and Kiwi conditions.

Day to day, there’s not much to “service” on the prop shaft itself. The universal joints are sealed (non‑greaseable) and the centre support bearing is a replace‑on‑wear item. What matters is regular inspections. At each service or about every 10–15,000 km, a tech should check for play in the U‑joints, tears in CV boots, sling marks from flung grease, and any weeping at the transmission or diff output seals.

Common signs it’s time to act include:

• Vibration or shudder under load or at highway speeds
• Clunk on take‑off or when shifting from reverse to drive
• Clicking on turns (often a front CV joint/boot issue)
• Grease spray around a CV boot or centre bearing area

Replacement approach depends on what’s worn. For a torn CV boot caught early, a boot kit can save the axle. If a joint’s noisy, most shops fit a complete CV shaft for reliability and warranty. For the prop shaft, Subaru typically supplies it as an assembly, if the centre bearing rubber is split or a U‑joint binds, swapping the lot is often the neatest fix. Always mark flange positions before removal to preserve balance, use new self‑locking hardware where specified, and refit heat shields properly to avoid drumming noises. After the job, a road test on smooth and coarse‑chip surfaces helps confirm it’s vibration‑free.

Quality parts, correct alignment, and a quick check of diff and transmission mounts go a long way to keeping the Outback quiet, smooth and ready for big kilometres.

Does a 2012 Subaru Outback have driveshafts?

Yes. It uses a central propeller shaft between the transmission and rear differential, plus CV drive shafts at each wheel. This is documented in Subaru’s Factory Service Manual and reflected in the Subaru parts catalogue for 2012 models.

How long do the driveshafts typically last?

With normal road use, sealed U‑joints and CV shafts can run well past 150,000 km. Gravel, lifted suspensions, torn boots or water/mud ingress can shorten that. Regular inspections catch boot damage early and prevent bigger bills.

Can you drive with a worn prop shaft or CV shaft?

It’s not recommended. A failing CV can suddenly let go, and a rough prop shaft can damage mounts or seals. If there’s vibration, clunks, or clicking on turns, get it checked and sorted before the next big trip.