Parts for your 2012 Subaru Forester-Centre bearing

2012 Subaru Forester centre-bearing: what it does, and when to replace it

Yes, the 2012 Subaru Forester is fitted with a centre support bearing on its two-piece propeller shaft (tailshaft). This is documented in Subaru’s Factory Service Manual for the 2012 Forester under the Propeller Shaft section, and reflected in Subaru’s Electronic Parts Catalogue where the carrier (centre) bearing and bracket are shown as part of the propeller shaft assembly. Both manual and automatic AWD models use this two-piece layout with a centre-bearing to support the shaft between the transmission and rear differential.

The centre-bearing’s job is to support the middle of the tailshaft, keeping everything aligned under load while soaking up vibration. It helps the Forester feel smooth on take-off and at highway speeds by controlling shaft whip and maintaining correct driveline angles. When it’s healthy, you don’t notice it at all, when it starts to go, you’ll hear and feel it.

Common signs the centre-bearing is on the way out include:

• A droning or rumbling noise that’s speed-related, often most noticeable around 40–80 km/h
• A shudder on take-off or under load
• A vibration through the floor, sometimes worse on overrun
• Visible cracking or separation in the bearing’s rubber support

As part of routine servicing, it’s smart to inspect the centre-bearing every 30,000–50,000 km (or any time there’s a driveline noise). A quick check on a hoist for excessive play, torn rubber, or misalignment can save a lot of grief later. Also check the universal joints and the bracket fasteners while you’re there.

Replacement is straightforward for a trained tech: mark the flanges for phasing, remove the rear flange bolts and centre bracket, then slide the shaft out of the transmission. The bearing itself is pressed onto the shaft. Subaru typically supplies the complete propeller shaft as an assembly, while aftermarket options offer carrier bearings separately. Either way, refit with correct phasing and torque values per the Subaru Service Manual to avoid new vibrations. It’s a good moment to inspect the rear diff flange and transmission output seal, and replace any tired hardware.

There’s no fixed lifespan, but many last well over 150,000 km. Rough roads, heavy towing, and lifted suspension can shorten it. After replacement, a road test across a range of speeds should leave the cabin calm and quiet again.

Popular questions

Does a 2012 Subaru Forester actually have a centre-bearing?
Yes. Subaru’s 2012 Forester AWD uses a two-piece propeller shaft with a centre support bearing, as shown in the Subaru Factory Service Manual and the Subaru parts catalogue diagrams.

Can the centre-bearing be replaced on its own, or is it a full shaft job?
Subaru usually sells the complete prop shaft assembly, but many workshops use quality aftermarket carrier bearings to rebuild the original shaft. Press work and correct phasing are essential to avoid vibrations.

What symptoms point to a failing centre-bearing?
Speed-related droning, a take-off shudder, or a floor vibration are the big giveaways. If the rubber support around the bearing is cracked or torn, it’s time to sort it.