Parts for your 2009 Subaru Exiga-Universal joints

2009 Subaru Exiga universal joints (U-joints): what they do and when to replace them

Universal joints are absolutely relevant on the 2009 Subaru Exiga. Technical sources including the Subaru Exiga (YA) workshop manual (Propeller Shaft section) and Subaru’s JDM parts catalogues note a two-piece propeller shaft with front and rear universal joints and a centre support bearing on Symmetrical AWD models. These U-joints are staked and supplied as part of the complete tailshaft/propeller shaft assembly. Front driveshafts are CV-jointed, but the tailshaft relies on U-joints to transmit drive to the rear diff.

On the Exiga, the U-joints let the tailshaft deliver torque smoothly even as the gearbox and rear differential move slightly under load and over bumps. They keep the AWD system happy by maintaining consistent rotational speed through changes in angle, reducing vibration and driveline harshness. Different to CV joints on the axles, these U-joints are compact, tough and designed for constant rotation down the centreline of the car.

Servicing-wise, the Exiga’s factory U-joints are sealed and not greaseable, so the job is all about inspection. During routine servicing, a tech should check for play at each joint, rust-coloured dust around the bearing caps, split or missing seals, and any looseness at the centre support bearing. A brief road test helps pick up tell-tales like a clunk on take-off or when shifting from reverse to drive, a rhythmic squeak at low speed, or a shudder/vibration under load around 40–80 km/h.

If a U-joint is worn, Subaru’s service approach is to replace the complete propeller shaft assembly because the joints are staked in. A driveline specialist can often rebuild the Exiga tailshaft with replaceable U-joints and re-balance it, which suits budget or performance needs. Whichever path is chosen, correct phasing and balance are critical to avoid new vibrations. It’s smart to mark the flange orientations before removal, torque the flange bolts to spec, and assess the centre bearing while it’s out.

There’s no set replacement interval, but checking the tailshaft every 20,000–30,000 km is sensible, especially if the vehicle tows, carries full loads, or has suspension changes. Catching wear early protects the diff, transmission output and tyres from vibration-related grief.

• Common symptoms: take-off clunk, mid-range shudder, low-speed squeak, play at the joint, reddish dust at caps.
• Typical fix: complete tailshaft replacement or specialist rebuild and balance.
• Tip: also inspect transmission mount and rear diff bushes when chasing vibrations.

Popular questions

Are the 2009 Exiga’s U-joints greaseable?
From the factory, no. The Exiga uses sealed, staked U-joints on the propeller shaft, so there are no grease nipples. That’s why regular inspection matters, when they wear, the OEM solution is a replacement tailshaft assembly. Some driveline rebuilds can add serviceable joints, which may suit long-term ownership.

What are the signs my Exiga’s U-joints need attention?
Listen and feel for a clunk when shifting between drive and reverse, a chirp or squeak at low speeds that changes with road speed, and a vibration under acceleration around suburban and highway speeds. Underneath, any free play at the crosses or rust-coloured dust near the caps is a red flag.

Can I replace just the U-joints, or do I need a whole tailshaft?
Subaru supplies the tailshaft as a complete unit because the joints are staked. However, many driveline specialists can press in quality replacement U-joints, set the phasing, and re-balance the shaft. If the centre bearing is noisy or the shaft tube is damaged, a full assembly swap may still be the better call.