Parts for your 2014 Subaru Outback-Driveshafts

2014 Subaru Outback driveshafts: what they do and how to look after them

Yes, driveshafts are absolutely used on the 2014 Subaru Outback. Subaru’s Factory Service Manual for the BM/BR platform (2010–2014) contains dedicated sections for the Propeller Shaft and Front/Rear Drive Shafts, and Subaru’s official parts catalog lists these assemblies for this model. With Symmetrical AWD across the range, the Outback runs a two-piece propeller shaft from the transmission to the rear differential, plus CV driveshafts (axles) at each driven wheel.

On this Outback, the propeller shaft shifts torque to the rear diff, while the CV driveshafts transfer power from the diffs to the wheels, allowing smooth suspension travel and steering without binding. Together they’re central to traction, stability and that planted Subaru feel on wet roads, corrugations and gravel.

There’s not much routine maintenance beyond inspection, but they do benefit from a keen eye during regular servicing. Most joints are sealed, so it’s about checking condition rather than greasing.

• What to watch for:
  • Vibration on acceleration or at highway speeds (possible prop shaft imbalance, worn centre bearing or joints).
  • Clunk when shifting between Drive and Reverse (excess play in joints or mounts).
  • Clicking on turns, shudder on take-off, or grease flung around a wheel well (torn CV boot or worn CV joint).
• Good service practice:
  • Inspect CV boots and clamps at each service (15,000 km typical). Replace split boots early to save the joint.
  • Check the prop shaft’s centre support bearing, couplings and flange bolts for play or damage.
  • Use matched tyres in brand, size and wear on all four corners, mismatched rolling diameters stress the AWD and driveshafts.
  • If removing the prop shaft, mark flange positions to preserve balance, use new self-locking hardware where specified by Subaru.

When a CV joint clicks or a boot’s torn and the grease has gone walkabout, replacing the complete driveshaft assembly is usually the most time- and cost-effective fix. For the propeller shaft, Subaru commonly supplies it as an assembly if the staked U-joints or centre bearing are worn. After any driveshaft work, a road test for vibration and a recheck of fastener torque is a smart move.

Looked after, the Outback’s driveshafts handle years of Kiwi and Aussie conditions without fuss.

Popular questions

How long do driveshafts last on a 2014 Outback?
With intact boots, matched tyres and regular inspections, CV driveshafts often run well past 150,000–250,000 km. Propeller shafts can last even longer. Harsh off-road use, lifted suspensions, or ignored boot splits shorten lifespan.

Can a torn CV boot be repaired, or do I need a whole driveshaft?
If caught early, a boot-only replacement can be fine. Once water and grit have entered or there’s clicking on turns, a complete shaft assembly is the reliable fix and usually better value for labour spent.

Is vibration at 90–110 km/h always a driveshaft issue?
Not always—wheel balance and tyres are common culprits. But if the vibration changes under throttle, or you feel it through the floor more than the steering, have the prop shaft, centre bearing and CV joints checked.