Parts for your 2016 Subaru Outback-Driveshafts

2016 Subaru Outback driveshafts: what they do and when to sort them

Driveshafts are absolutely used on the 2016 Subaru Outback. Technical sources including the Subaru Legacy/Outback 2015–2019 Service Manual (Drive Shaft System section) and Subaru’s Genuine Parts Catalogue (Group 27: Propeller Shaft, Front/Rear Axle Shafts) confirm the vehicle runs a centre propeller shaft that sends drive to the rear differential, plus CV axle shafts at each wheel. Subaru’s AWD layout depends on these shafts to deliver torque smoothly front and rear.

On this Outback, the propeller shaft (sometimes just called the “driveshaft”) links the transmission to the rear diff, while the front and rear CV axle shafts put power to each wheel. Together, they keep traction sorted on wet roads, gravel and long touring runs across NZ and Oz. CV joints allow the shafts to flex with suspension movement and steering without vibration.

As part of regular servicing, it’s smart to:

• Inspect CV boots for splits, grease sling and weeping seals
• Check for play in the prop shaft centre support bearing and listen for droning or shudder under load
• Look for surface rust on flanges and hardware, and ensure no contact with exhaust heat shields
• Road test for clicks on full lock (axle CV wear) or vibration on acceleration and at highway speeds (prop shaft or axle imbalance/wear)

If a boot is torn, catch it early. Fresh grease and a new boot can save a complete axle. Once grit gets in and joints click, replace the axle shaft. For the centre prop shaft, Subaru commonly supplies it as an assembly, individual universal/CV joints may not be serviceable to OEM spec, so replacement of the whole unit is typical practice noted in the service manual procedures.

When replacing, mark flange alignment before removal, use new self-locking hardware where specified, and tighten to the service manual’s torque specs. After any shaft work, a quick road test for vibration and a re-check for weeps is worth doing. With sensible checks every service (or at least every 10–15,000 km), the Outback’s driveshafts usually run for years without drama.

Popular questions about 2016 Subaru Outback driveshafts

How do I know if a driveshaft or CV shaft is failing?
Typical signs include a clicking noise on full lock when turning (front or rear CV joint wear), a thump on take-off, or a vibration/shudder at certain speeds under load (often the prop shaft or its centre bearing). Grease flung around a wheel arch is a giveaway of a split CV boot.

How long do the driveshafts generally last?
With intact boots and regular servicing, many Outback CV shafts run well past 150,000–200,000 km. The propeller shaft often lasts even longer. Harsh off-road use, lifted suspensions, or ignored boot splits can shorten their life considerably.

Can I keep driving with a noisy driveshaft?
It’s not recommended. A clicking CV can suddenly worsen and leave you stranded, and a failing prop shaft or centre bearing can cause vibration that stresses other driveline parts. Get it checked promptly to avoid bigger bills.