Parts for your 2008 Subaru Forester-Driveshafts

2008 Subaru Forester driveshafts

Yes, driveshafts are very much used on the 2008 Subaru Forester. Technical sources including the Subaru factory service manual for the 2008 model year (SG/early SH platform), Subaru’s OEM parts catalogue, and widely used workshop references all show a central propeller shaft running from the transmission to the rear differential, plus CV axle shafts (front and rear) at each wheel. That layout is core to Subaru’s Symmetrical AWD system.

On this Forester, the driveshafts do the heavy lifting of getting power to the ground. The front and rear CV axle shafts transfer torque to each wheel while allowing the suspension and steering to move freely. The propeller shaft (often just called the “driveshaft”) links the transmission’s centre differential to the rear diff. Together, they keep the Forester’s AWD grip working whether it’s commuting in the wet or heading down a gravel track.

As part of regular servicing, it’s smart to give the driveshafts a once-over. CV joints are sealed and rely on intact rubber boots to hold grease. Torn boots let grit in and grease out, which quickly chews the joint. The propeller shaft uses universal joints and a centre support bearing, on many 2008 Foresters the U‑joints are non‑greasable, so condition checks are key and the assembly is replaced if worn.

• Look for sling marks of grease around the inside of the wheels or underbody – a classic sign of a split CV boot.
• Listen for clicking on turns (front CVs), or a thump on take‑off and a vibration around 80–110 km/h (prop shaft/U‑joints or centre bearing).
• At each service, inspect CV boots for cracks, tears, or weeping, check prop shaft play and the centre bearing rubber for cracking.
• If a boot is torn and the joint isn’t noisy, a boot-only repair can save the axle. If there’s noise or pitting, replace the axle shaft.
• Use quality replacement parts and always torque the axle nuts to spec – it protects the wheel bearings.

There’s no set replacement interval for driveshafts, condition and kilometres tell the story. Plenty of 2008 Foresters run original shafts well past 200,000 km if boots stay intact and the centre bearing remains healthy. If any vibration, clunk, or clicking shows up, sort it early – it’s cheaper than waiting until collateral damage sets in.

Popular questions about 2008 Subaru Forester driveshafts

What are the common signs of a bad driveshaft or CV axle on a 2008 Forester?

Clicking on full lock, grease sprayed near the wheel, or a shudder on take‑off usually points to a CV axle issue. A humming or vibration at highway speeds, or a clunk on throttle changes, can indicate propeller shaft U‑joints or the centre support bearing wearing out.

Do the driveshafts need regular maintenance?

They’re mostly low‑maintenance but not no‑maintenance. Inspect CV boots and the propeller shaft centre bearing every service. Replace damaged boots promptly and address any play or roughness in U‑joints, on many models the prop shaft is replaced as a unit when the joints wear.

Is it safe to drive with a torn CV boot?

Short term, gentle driving might be possible, but it’s risky. Once the boot splits, contamination can ruin the joint in short order. If it’s caught early, a boot replacement can save the axle, if there’s already clicking, plan on a full axle replacement.