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If you drive a Subaru Legacy GT, faulty CV axles can cause vibration, clicking while turning, or grease leaks that damage other drivetrain parts. Choosing the right Subaru Legacy GT CV axle matters because fitment, joint quality, and boot durability directly affect drivability and long-term reliability.This guide covers a short list of seven top CV axles vetted for fit and durability. We evaluate each option for fitment accuracy, build quality, and expected service life so you can pick the replacement that best matches your driving style and maintenance preferences. Read on for what to check before you buy and how to spot common symptoms of failure.
Looking for other parts? See all Subaru Legacy parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | A-Premium Pair Front CV Axle Shaft Assembly for Subaru (Front Left & Right) |  |
| Best Quality Built to a higher standard if you want something more solid | Autoround Front CV Axle Shaft Assembly — Pair |  |
| Best Value The sweet spot between price and what you get | BRTEC Front CV Axle Shaft Assembly (66-7355) |  |
| Best Budget The cheapest option that still gets the job done reliably | AUTOCLUB Front CV Axle Shaft Assembly for Subaru (Front Left or Right) |  |
| Highest Rated A top-rated pick with lots of positive feedback | MOOG CV Axle Assembly 16H001 (Front) |  |
| Most Popular A crowd favorite that many people choose with confidence | TRQ Front CV Axle Assembly Set (2-Piece) for Subaru Legacy/Outback and Impreza |  |
| Best Seller A high-volume bestseller chosen again and again | A-Premium Front CV Axle Shaft Assembly (front left or right) |  |
1. A-Premium Pair Front CV Axle Shaft Assembly for Subaru (Front Left & Right)
| Vehicle fitment | Subaru Impreza 2008-2015; Legacy 2005-2009; Outback 2005-2009 |
|---|---|
| Location | Front left and right |
| Axle nut | Included |
| Input shaft spline count | 25 |
| Output shaft spline count | 27 |
These A-Premium front CV axle shaft assemblies are a direct-replacement pair intended to restore drivetrain power delivery on compatible Subaru Impreza, Legacy, and Outback models. They arrive preassembled with axle nuts included and the correct spline counts for the application, so installation is straightforward for a mechanically competent DIYer or a shop. The assemblies transfer torque from the transaxle to the wheels and are built to match factory fit and function, which helps eliminate vibration and clicking associated with worn CV joints. Notable practical features include included axle nuts and a factory-length compressed specification so the axles tuck into the hub and transaxle without modification. Limitations to consider are the lack of an ABS ring and that fitment is limited to the listed Subaru model years, so confirm reference numbers and spline counts before buying. A-Premium backs these axles with a one-year unlimited-mileage guarantee, which adds reassurance for everyday driving use.
Best for: Buyers who want a practical, balanced replacement that restores factory-like drivetrain performance on the specified Subaru models and prefer a ready-to-install pair for routine repairs.
Less Ideal for: Drivers who need ABS-equipped axles, custom-length or performance-upgraded half-shafts, or those working on vehicles outside the listed Subaru year ranges should look elsewhere.
- Supplied as a matched pair for both front sides so both axles wear evenly after replacement
- Includes axle nuts and correct spline counts for straightforward installation
- Factory-length compressed specification for drop-in fit without modification
- One-year unlimited-mileage guarantee provides added buyer reassurance
- Does not include an ABS tone ring which may be required on some variants
Verdict: A practical, ready-to-install pair of front CV axles that restores factory-style performance for the specified Subaru models while offering a one-year unlimited-mileage guarantee.
2. Autoround Front CV Axle Shaft Assembly — Pair
| Manufacturer | Autoround |
|---|---|
| Manufacturer Part Number | CTCV0252 |
| Compatible Vehicles | Subaru Impreza 2008-2015; Legacy 2005-2009; Outback 2005-2009 |
| Package | 2 x Front CV Axle Shaft Assembly |
These Autoround front CV axle shaft assemblies come as a matched driver and passenger pair intended to replace worn or damaged factory front half-shafts on compatible Subaru models. They are built to factory-spec guidance and ISO quality standards, arriving ready to install as complete assemblies with joints and boots preassembled. In everyday use they restore smooth power delivery to the front wheels, eliminate clicking during tight turns, and reduce vibration from failing axles. The product listing highlights compatibility with Impreza 2008 to 2015 and Legacy/Outback 2005 to 2009 and lists a range of OEM reference numbers for cross-checking fit. Practical benefits include avoiding the labor and hassle of rebuilding individual CV joints and getting both sides matched for consistent drivetrain behavior. Keep in mind this is an aftermarket replacement produced under Autoround's factory guidance rather than a factory branded part, so installers who require exact factory sourcing or verified dyno-tested performance upgrades may prefer alternatives. Fitment must be confirmed against the vehicle's year and trim before purchase.
Best for: Drivers who want a direct replacement that restores front-end drivability and eliminates CV-related noise or vibration while keeping a focus on reliable, factory-spec performance.
Less Ideal for: Buyers seeking verified performance upgrades, race-prepped components, or original factory-branded parts should consider specialized aftermarket or dealer-sourced options instead.
- Sold as a matched driver and passenger pair for balanced front drivetrain replacement
- Manufactured to factory-spec guidance and ISO quality standards
- Arrives as complete assemblies with joints and boots preinstalled for faster installation
- Compatible with a clear list of Subaru Impreza, Legacy, and Outback model years and OEM reference numbers
- Aftermarket part rather than a factory-branded unit which may concern buyers seeking OEM sourcing
- Compatibility limited to the listed Subaru model years and trims so fitment verification is required
Verdict: A cost-effective, factory-spec replacement pair that gets a Subaru's front driveline back to smooth, quiet operation without rebuilding individual joints.
3. BRTEC Front CV Axle Shaft Assembly (66-7355)
| Location | Front Driver or Passenger |
|---|---|
| Spindle Nut Thread Size | M22X1.5 |
| Input Shaft Spline Count | 25 |
| Output Shaft Spline Count | 27 |
This BRTEC front CV axle is a complete half-shaft assembly built to replace a failing front drive axle on compatible Subaru vehicles. It installs in place of the original unit and includes inner and outer CV joints with pre-greased boots so you can swap it in without rebuilding joints. The axle is made from high-hardness steel and specifies spindle nut thread size and spline counts to match factory connection points, which helps simplify fitment and torqueing during installation. In everyday use it restores smooth power delivery to the front wheels and removes common symptoms of a bad axle such as clicking on turns or vibration under acceleration. Buyers should note this is a direct replacement for the listed vehicle and reference numbers only, so confirm fitment for your exact year and engine before ordering. For DIY installers it reduces bench time versus sourcing separate joints, while professional shops will find the assembly saves labor compared with rebuilding a damaged axle.
Best for: Buyers who want a practical, ready-to-install replacement axle that restores drivability with minimal parts sourcing and less installation time.
Less Ideal for: If you prefer to repair and reuse original components or need a custom or performance-oriented axle beyond factory-spec replacement, look elsewhere.
- Complete assembly with inner and outer CV joints included, eliminating the need to rebuild the original axle.
- Constructed from high-hardness steel for improved resistance to impact and road stress.
- Pre-greased boots and matching spline/thread specifications simplify installation and ensure correct mechanical mating.
- Fits front driver or passenger side for the listed Subaru Impreza, Legacy, and Outback applications, covering common engine variants.
- Fitment is limited to the specific years and engines listed so it will not work on all Subaru models or configurations.
Verdict: Choose this ready-to-install BRTEC axle when you need a straightforward, factory-style replacement that gets a Subaru back on the road quickly.
4. AUTOCLUB Front CV Axle Shaft Assembly for Subaru (Front Left or Right)
| Position | Front |
|---|---|
| Inner Spline | 25 |
| Outer Spline | 27 |
| Package Contents | 1x Front CV Axle Shaft Assembly |
| Warranty | 10-Year Warranty |
This AUTOCLUB front CV axle shaft is a direct-replacement half-shaft for select Subaru Impreza, Outback Sport, and Legacy applications and is sold as a single front axle (driver or passenger side). It installs in place of a worn or failed CV axle to restore driveline connection and reduce vibration and clicking when turning. The listing highlights factory-style splines and overall length matched to the original, and the axle arrives preassembled with boots so it is ready to fit and drive. For budget-focused repairs this unit provides a practical way to get a vehicle back on the road without a full hub assembly swap. Expect a straightforward swap for mechanically competent DIYers or techs, but verify the exact model, transmission, and side fitment before ordering since fit is limited to the compatible Subaru variations listed. The product is a value-oriented replacement that aims to balance cost and serviceable life rather than offering performance upgrades for heavy-duty or high-mileage use.
Best for: Buyers who need an affordable, factory-style front axle replacement to repair a Subaru driveline and prefer a ready-to-install part they or a local shop can swap quickly.
Less Ideal for: Drivers seeking heavy-duty, high-mileage performance upgrades, motorsport use, or a universal multi-vehicle solution should consider performance or upgraded axles instead.
- Preassembled axle with boots for ready installation
- Matches factory spline counts and overall length for direct fit on listed Subaru models
- Suitable for driver or passenger front-side replacement
- Backed by a long 10-year warranty period listed by the brand
- Fitment limited to specific Subaru model years and configurations so cross-check vehicle details before purchase
Verdict: A cost-conscious, ready-to-install front CV axle built to match factory spline and length for common Subaru front-side replacements.
5. MOOG CV Axle Assembly 16H001 (Front)
| Brand | MOOG |
|---|---|
| Manufacturer | DRiV Incorporated |
| Position | Front |
| Item model number | 16H001 |
This MOOG front CV axle assembly is a direct-fit replacement intended for mid-2000s Subaru Legacy and Outback models. It arrives as a complete half-shaft with axle nut and inboard bolts where required, so installation is straightforward during a routine drivetrain repair. The axle uses a durable neoprene boot to keep out water and debris, and MOOG applies a rust-inhibiting coating to housings and the intermediate shaft to improve long-term resistance to road salt and moisture. Heat-treated bearings, races, and housings are intended to preserve joint geometry and articulation under typical driving loads, which should translate to quieter operation and longer life compared with worn components. This part targets owners who need a reliable, factory-quality replacement that minimizes follow-up repairs. It is a single-vehicle fitment item, so confirm model and year compatibility before buying and expect shop labor if you are not doing the swap yourself.
Best for: Buyers who prioritize long-term reliability and want a factory-quality replacement axle to restore drivetrain function with minimal chance of repeat failure.
Less Ideal for: Purchasers seeking a universal or multi-vehicle axle or those looking for a lightweight performance-oriented aftermarket shaft should consider other options.
- Complete assembly includes axle nut and inboard bolts for a more complete repair
- Neoprene boot designed to keep out water and debris to reduce premature joint failure
- Rust-resistant coating on shaft and housings improves durability in wet and salted-road conditions
- Heat-treated bearings and races for maintained joint geometry and smoother operation
- Compatibility limited to specific Subaru model years so it is not a universal replacement
- May require professional installation if you lack tools or experience for axle removal and torque procedures
Verdict: Choose this MOOG front CV axle when you want a factory-quality, rust-resistant replacement built to last for Subaru Legacy and Outback drivability restoration.
6. TRQ Front CV Axle Assembly Set (2-Piece) for Subaru Legacy/Outback and Impreza
| Brand | TRQ |
|---|---|
| Model | TRQ CSA82478 2 Piece CV Axle Assembly Set |
| Position | Front |
| OEM Part Number | 28321AG00B, 28321AG00D, 28321AG01A, 28321AG01B |
This TRQ kit includes both front driver and passenger CV axle assemblies intended as direct-fit replacements for compatible Subaru Legacy and Outback models. It arrives pre-assembled so installation is straightforward for experienced DIYers or a mechanic, and the neoprene boots plus moly greased joints are aimed at longer service life and better resistance to tears and contamination than some stock-style parts. The application-specific design means no modification should be necessary, and TRQ provides installation videos to help guide the process. In real-world use these axles are best for owners replacing worn or noisy CV joints who want a ready-to-install pair rather than rebuilding individual shafts. Limitations to consider are that this is an aftermarket replacement rather than a factory part and long-term longevity will depend on driving conditions; heavy off-road use or chronic exposure to corrosive environments may still shorten service life compared with higher-end premium units.
Best for: Buyers who want a ready-to-install, documented replacement pair with demonstrated real-world reviews and resources to support a confident DIY or shop installation.
Less Ideal for: Drivers planning heavy off-road use, extreme climates, or who need an OEM-identical part for warranty or restoration purposes should consider other options.
- Pre-assembled pair saves installation time and reduces fitment errors
- Neoprene boots offer improved durability over standard boot materials
- Moly grease applied at manufacture to reduce premature wear
- Application-specific design for direct fit without modifications
- Aftermarket part so long-term durability may vary compared with higher-end replacements
Verdict: A convenient, pre-assembled front axle pair with tougher neoprene boots and factory-style greasing that makes replacing worn Subaru front CV axles quick and approachable.
7. A-Premium Front CV Axle Shaft Assembly (front left or right)
| Vehicle fitment | Subaru Impreza 2008-2015, Legacy 2005-2009, Outback 2005-2009 |
|---|---|
| Location | Front left or right |
| Axle nut | Included |
| Input shaft spline count | 25 |
| Output shaft spline count | 27 |
This A-Premium CV axle is a direct-fit front half-shaft designed to restore drive to Subaru Impreza (2008–2015), Legacy (2005–2009) and Outback (2005–2009) models. It transfers torque from the transmission to the wheel and comes with the axle nut and the correct spline counts to match factory components. Install is typical for a front axle replacement: remove the hub nut, separate the old shaft, and press the new assembly into the transaxle or differential. Notable points are the included axle nut and the matched 25/27 spline counts which simplify fitment and reduce the need for extra parts. The assembly does not include an ABS tone ring and has a compressed length that should match the vehicle's specification, so confirm fit before installation. A-Premium also backs the part with a one-year unlimited-mileage guarantee which offers extra peace of mind for buyers concerned about reliability. Expect a straightforward replacement for drivers who want a ready-to-install front axle without aftermarket performance changes.
Best for: Buyers who prioritize a reliable, ready-to-install replacement that closely matches factory fitment and who want warranty coverage for peace of mind.
Less Ideal for: Shoppers seeking performance-upgraded or heavy-duty axles for motorsport or high-power modifications should look at specialty performance parts instead.
- Direct-fit front left or right assembly suitable for listed Subaru models
- Includes axle nut to simplify installation
- Matched input and output spline counts to align with factory driveline
- Backed by a one-year unlimited-mileage guarantee for added reassurance
- Does not include an ABS tone ring which may be required for some AWD systems
Verdict: A practical, warranty-backed direct-fit front axle that restores factory-style drivability for covered Subaru models.
Choosing the Right Subaru Legacy GT CV Axle: Key Factors to Consider
Fitment and Spline Compatibility
Correct fitment is essential because mismatched splines or flange dimensions can prevent installation or cause premature wear. Verify spline count, shaft length, and flange bolt pattern against your Legacy GT specifications to ensure a proper, torque-able connection.
A precise fit reduces the risk of drivetrain vibration and helps maintain axle alignment under load. Misfit components can lead to accelerated joint wear and may transfer stress to the transmission or differential, increasing repair scope and cost.
CV Joint Type and Construction
Different CV joint designs handle loads and articulation differently. Look for joints with robust internal components, such as heat-treated bearings and hardened cages, which resist fatigue from aggressive driving or heavy loads. The joint design also affects noise characteristics; higher-quality joints typically produce less clicking during tight turns.
Pay attention to the articulation range and how the joint manages lubrication. Better-constructed joints maintain grease film under high angle operation, lowering metal-to-metal contact and extending service intervals.
Boot Material and Sealing Quality
The CV joint boot is the primary defense against contamination. Durable boot materials resist tears and cracking from road debris and temperature cycling. A properly sealed boot keeps grease inside and water or dirt out, preventing accelerated joint failure.
Check for boots with reinforced lips, quality clamps, or crimped bands that maintain a secure seal over time. Boots that are easy to replace separately give you a more serviceable axle without needing a full assembly swap if the boot fails.
Shaft Strength and Corrosion Resistance
Axle shaft material and protective coatings matter for longevity. Heat-treated shafts resist bending and fatigue from repeated torque cycles, while corrosion-resistant finishes prevent pitting that can create stress concentrators.
A stronger shaft reduces the risk of fracture under hard acceleration or when encountering road impacts. Corrosion protection is especially important in areas with salt or moisture exposure to prevent premature weakening.
Warranty and Serviceability
Warranty terms signal manufacturer confidence and can cover premature failures. Consider warranty length and what it covers, especially for joint failure and boot defects. Also evaluate whether replacement boots or hardware are available separately and how easy it is to source installation parts.
Serviceability affects total ownership cost. Axles with replaceable boots or readily available hardware allow cheaper repairs and extend the usable life of the assembly compared with sealed, non-serviceable units.
Installation Complexity and Hardware Included
Some CV axles require additional labor or parts during installation, such as new axle nuts, hub bolts, or alignment checks. Choosing an axle that includes necessary hardware and follows factory assembly geometry reduces installation time and potential fitment issues.
Consider whether you will install the axle yourself or use a shop. Clear instructions, included hardware, and compatibility with factory torque specifications simplify installation and minimize the chance of rework or damage.
Common Symptoms of a Failing CV Axle on the Legacy GT
Recognizing failure early can prevent collateral damage. Typical signs include a rhythmic vibration under acceleration, especially at highway speed, a clicking or popping sound when turning, and visible grease around the wheel hub or inside the wheel well. You may also notice roughness during acceleration or a shudder at certain speeds.
- Rhythmic vibration or axle vibration at highway speed
- Clicking when turning indicating the CV joint is worn
- Visible grease or a torn CV joint boot
- Difficulty accelerating smoothly or intermittent shuddering
Diagnosing Boot Damage and Grease Leakage
Inspect the inner and outer boots for tears, cracks, or loose clamps. A torn CV joint boot often leads to grease being flung onto nearby suspension components and the inside of the wheel, which is a clear sign the joint has been exposed to contaminants. When grease has escaped, metal contamination likely follows and joint life is reduced.
- Look for grease on the wheel, hub, and suspension arms
- Check for weathering or cracks on the boot surface
- Rotate the wheel and observe the joint at different steering angles to spot leakage
When To Repair The Boot Versus Replace The Axle
If the boot is torn but the joint shows no play and grease contamination is minimal, replacing the boot and repacking grease can restore function at lower cost. However, if there is clicking when turning, excessive play, or significant contamination, a full half shaft replacement is the safer long-term choice.Consider serviceability and future reliability: a new boot fixes the symptom but not prior wear. For higher-mileage Legacy GTs or if the car experiences performance driving loads, proactive axle replacement reduces the chance of repeat service.
- Replace boot only when joint is tight and contamination is minor
- Replace the whole CV axle if clicking, play, or heavy contamination exists
- Factor in vehicle mileage and driving style when deciding
Installation Tips for Subaru Legacy GT Owners
Use a torque wrench and factory torque specs for the axle nut and hub bolts to avoid inducing bearing preload or distortion. Inspect the hub, wheel bearing, and mating surfaces for corrosion or damage before fitting the new axle. Clean mating surfaces and use anti-seize where appropriate on splines if recommended by repair documentation.If you are a DIYer, secure the vehicle properly and support the transmission or differential when removing the shaft to prevent stress on engine mounts. Verify that included hardware matches factory parts and replace any one-time-use fasteners per the repair manual.
- Follow factory torque specs for axle nut and hub bolts
- Support the drivetrain during removal to avoid undue stress
- Clean and inspect mating surfaces before installation
Maintaining Longer CV Axle Life
Regular visual inspections during oil changes or tire rotations help catch boot damage early. Avoid rough curb strikes and potholes that can bend shafts or overload joints. When replacing components, choose options with durable boots and corrosion protection to reduce repeat procedures.Periodic greasing is not possible on sealed assemblies, so pay attention to the boot condition instead. If you frequently drive in harsh conditions, consider more robust boot materials or axles with serviceable boots to extend lifetime and reduce downtime.
- Inspect boots at regular intervals
- Avoid harsh impacts that stress the axle
- Choose axles with corrosion-resistant finishes and serviceable boots when possible
Still looking for the perfect fit?
Select your Subaru Legacy configuration to see the most relevant CV Axles recommendations
How We Chose the Best Subaru Legacy GT CV Axle
Our shortlist focuses on CV axles that meet fitment and durability expectations for the Subaru Legacy GT. We prioritized components that match factory spline counts and flange dimensions to ensure correct fit without modification. Material and design criteria included joint type and heat-treated axle shafts, resilient boot materials, and corrosion-resistant coatings that extend service life.We also evaluated ease of installation, availability of replacement boots and hardware, and documented owner feedback on long-term reliability. Noise, vibration, and grease-leak history were key practical measures we considered. Items excluded from consideration were non-vehicle-specific universal axles, units lacking proper fitment data for the Legacy GT, and pieces without replaceable boot options.Final selections balanced mechanical compatibility, expected durability, and serviceability rather than short-term cost savings.
Our full evaluation process is outlined in our review methodology.
FAQ
What causes clicking when turning on a Legacy GT?
Clicking while turning is often caused by a worn outer CV joint that has lost lubricant or developed internal wear. It usually indicates the joint has been exposed to contamination or has reached the end of its service life and should be inspected promptly.
Can I replace just the CV boot on my Legacy GT?
Yes, if the joint is still tight and free of contamination, replacing the CV joint boot and repacking grease can be a cost-effective fix. If there is clicking, excessive play, or significant grease loss, a full axle replacement is usually the better option.
How urgent is a torn CV joint boot?
A torn boot is urgent because it allows dirt and moisture to enter and grease to escape, accelerating joint wear. Address it quickly to avoid a failed CV joint and potential additional drivetrain damage.
Will a bad CV axle cause vibration at highway speed?
Yes, a failing CV axle can cause rhythmic vibration at highway speeds due to imbalanced or worn joints. Other causes exist, so inspect the axle, wheel balance, and suspension components to isolate the source.
Do I need special tools to replace a Legacy GT CV axle?
Basic hand tools, a breaker bar, and a torque wrench are required. Additional tools like a ball joint separator or hub puller may be needed depending on how the axle interfaces with the hub. Support for the transmission is recommended to prevent drivetrain stress.
How long should a replacement CV axle last on a Legacy GT?
Lifespan varies with driving conditions and boot integrity. Properly fitted, well-protected axles often last many years, but exposure to road salt, debris, or repeated high-load driving will shorten service life.
Final Verdict
Prioritize correct fitment and joint durability when choosing a CV axle for the Subaru Legacy GT. Inspect boot condition, verify spline and flange compatibility, and consider shaft strength and corrosion resistance to avoid repeat repairs.Balance serviceability and warranty coverage against the expected driving conditions for the car. Choosing an axle that matches factory dimensions and offers robust boots will reduce vibration and noise and provide the most reliable outcome for most Legacy GT owners.
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