Parts for your 2009 Subaru Impreza-Cv joint

2009 Subaru Impreza CV Joint — what it does and when to service it

Technical sources confirm the 2009 Subaru Impreza is fitted with CV joints. The Subaru Workshop Service Manual for 2008–2011 Impreza (Front Axle and Rear Axle/Drive Shaft sections) details outer and inner CV joints on the front and rear shafts, and the Subaru parts catalogue lists complete drive shaft/CV assemblies for this model. Haynes- and factory-type repair guides for the GE/GH chassis also specify CV boot and axle replacement procedures. So, a CV joint is absolutely relevant to this vehicle.

On the 2009 Impreza, CV joints let the driven wheels move up and down with the suspension and, on the front, turn for steering—while still delivering smooth torque from the gearbox or rear diff. The outer joints (typically Rzeppa-style) handle steering angles, the inner joints (often tripod/plunge joints) accommodate length changes as the suspension travels. Subaru’s symmetrical AWD layout relies on healthy CV joints and boots at each corner to keep power flowing without vibration or chatter.

As part of regular servicing, it pays to inspect the CV boots every service interval or before big road trips. The rubber boots are the real wear item: once they split, grease escapes, water and grit get in, and the joint can quickly wear out. Catching a torn boot early usually saves the joint. If the joint has already started clicking or has play, replacing the complete axle assembly is often the most reliable fix.

• Look for grease spray on the inside of wheels or under the guards.
• Listen for clicking or popping on tight, low-speed turns.
• Note shudder under acceleration or a rhythmic vibration at speed.
• Check boots for cracks, loose clamps, or perishing.

When replacement’s needed, many workshops fit a complete drive shaft rather than rebuilding a single joint—it’s quicker, keeps balance correct, and restores fresh boots both ends. Use quality new or remanufactured shafts that meet OE specs, and have the axle nut correctly torqued with a new split pin or staked nut as specified in the workshop manual. An alignment isn’t usually required for a straight axle swap, but if ball joints, struts, or tie-rods are disturbed, getting a wheel alignment is a smart move. Sticking to proper grease, correct clamps, and factory procedures keeps the Impreza’s CVs quiet and its AWD feeling tight for many more kilometres.

Popular questions about 2009 Subaru Impreza CV joints

How long do CV joints last on a 2009 Impreza?
With intact boots and normal driving, many last well beyond 150,000 km. Boots tend to fail before the joint does, so regular inspections are the key to long life. Harsh roads, lifted suspension, or torn boots shorten the timeline significantly.

Do both front and rear axles have CV joints?
Yes. The 2009 Impreza’s AWD system uses CV joints on the front drive shafts and the rear axle shafts. Outer joints manage steering on the front, and both ends use inner plunge joints to allow suspension movement.

Should the whole drive shaft be replaced or just the boot/joint?
If a boot is freshly torn and the joint is still quiet with no play, a boot and grease service can be fine. If there’s clicking, vibration, or contamination, replacing the entire shaft is usually the most reliable and time‑efficient option.