Parts for your 2017 Subaru Exiga-Universal joints

2017 Subaru Exiga universal joints — what they do and when to service them

Yes, universal joints are relevant to the 2017 Subaru Exiga. Technical references including the Subaru Exiga/Crossover 7 (YA series) Service Manual—Propeller Shaft and Steering sections—plus Subaru’s New Car Features for Symmetrical AWD, and Subaru’s electronic parts catalogue (FAST) indicate the model uses universal joints in two key places: in the two‑piece propeller shaft (driveshaft) to the rear differential, and in the steering intermediate shaft. The front and rear wheel drive shafts use constant‑velocity (CV) joints, not universal joints.

On the Exiga’s AWD system, the prop shaft universal joints let the shaft transmit torque while dealing with angles and movement between the transmission and the rear diff. That keeps the driveline smooth over bumps and during body movement. The steering column’s small universal joint lets the column angle to the rack without binding, so steering stays light and predictable.

For servicing, most late‑model Subaru propeller shafts (including Exiga/Crossover 7) use staked, non‑greaseable universal joints. Subaru’s service information specifies replacement of the complete propeller shaft assembly if a U‑joint is worn or seized, and replacement of the complete steering joint if play or corrosion is found. Aftermarket machine‑replaceable U‑joints do exist, but they require specialist pressing and careful phasing to avoid vibration.

• Typical symptoms of a tired prop shaft U‑joint: a dull clunk on take‑up, tingling vibration under load or on overrun, and a chirp or squeak at low speed that changes with road speed.
• Inspection tips during routine servicing (say every 20,000 km): check for red rust dust at the bearing caps, any free play when twisting the shaft by hand, binding spots, and the condition of the centre support bearing and mount.
• Steering joint check: feel for notchiness or tight spots when turning lock‑to‑lock with the engine off, look for corrosion at the joint and any free play at the splines or yokes.

If replacement is needed, mark the prop shaft orientation before removal, renew the centre bearing if noisy, and torque fixings to spec. A road test afterwards to confirm no vibration at 60–100 km/h is a must. Because the Exiga’s wheel drive shafts are CV‑jointed, clicking on turns or split boots usually points to a CV issue, not a prop shaft U‑joint.

Popular questions about 2017 Subaru Exiga universal joints

How can someone tell if the Exiga’s prop shaft U‑joint is worn?
They’ll usually notice a clunk when shifting from reverse to drive, a shudder under acceleration, or a speed‑related vibration that’s worse on load or overrun. On a hoist, red rust dust at the bearing caps and any detectable free play when twisting the shaft are classic signs.

Some faults mimic tyre or wheel balance issues, so a proper driveline inspection and road test is the best way to confirm it’s the U‑joint and not something else like a centre bearing or a rear diff mount.

Can just the U‑joint be replaced, or does the whole prop shaft need changing?
Subaru specifies the complete propeller shaft assembly for service because the factory U‑joints are staked and non‑greaseable. That said, some driveline specialists can fit serviceable replacements. It needs pressing equipment, correct sizing, and careful phasing—otherwise vibrations can be worse than before.

For most owners, a new or quality remanufactured prop shaft is the straightforward, warranty‑friendly fix.

What’s the difference between the Exiga’s U‑joints and its CV joints?
Universal joints are used in the propeller shaft and steering intermediate shaft to handle angular movement with simple, robust hardware. CV joints live at the wheel ends and allow big steering/suspension angles while keeping velocity constant, which prevents shudder on full lock.

So, clunks and straight‑line vibration often point to U‑joints, clicking on turns or split boots usually points to CV joints.