![MZ-44A44; GD38-22-510A <strong>CV</strong> <strong>Joint</strong> Kit 28/32/56.<strong>6</strong> for <strong>Mazda</strong> <strong>6</strong> Hatchback [2002-2008]](http://s.alicdn.com/@sc04/kf/H01b2adaa72f54ce6b06782913ff7383a5.jpg_300x300.jpg)
Types of Mazda 6 CV Joint
The Mazda 6 CV joint (constant velocity joint) is a crucial component of the drivetrain system, enabling smooth power transmission from the engine to the wheels even when operating at different angles. These joints are essential for maintaining consistent vehicle performance during turns and over uneven surfaces.
Technical Note: CV joints are particularly important in front-wheel-drive vehicles like the Mazda 6, as they must allow for both turning and power transmission simultaneously without sacrificing performance or creating vibration.
Outer CV Joint
Located on the wheel side of the drive axle, the outer CV joint allows wheels to turn while maintaining constant power delivery.
Key function: Enables steering movement while transmitting power
- Rzeppa Joint: Most common in Mazda 6, featuring spherical design with balls in a raceway for smooth power transmission
- Tripod Joint: Less common design with three-legged configuration, better for vertical motion but less smooth overall
Inner CV Joint
Positioned at the transmission side of the drive axle, the inner CV joint manages axle length changes during suspension travel.
Key function: Accommodates axle length variations while maintaining power flow
- Double Offset Joint: Common in Mazda 6, handles high torque while reducing vibration and noise
- Plunge Joint: Specialized for applications requiring axial movement, less common in standard Mazda 6 configurations
| CV Joint Type | Location | Primary Function | Common Variants |
|---|---|---|---|
| Outer CV Joint | Wheel side | Enables steering while transmitting power | Rzeppa (primary), Tripod (secondary) |
| Inner CV Joint | Transmission side | Accommodates axle length changes | Double Offset (primary), Plunge (specialized) |
Specifications and Maintenance
Understanding the technical specifications of Mazda 6 CV joints is essential for proper maintenance and replacement. These specifications vary slightly based on vehicle year and configuration.
Technical Specifications
| Specification | Detail | Importance |
|---|---|---|
| Joint Size | 90-110mm diameter (medium class) | Affects load capacity and fitment |
| Joint Type | 3rd generation triple-lip technology | Determines durability and performance |
| Material | Alloy steel with hardened components | Impacts strength and wear resistance |
| Coating | Zinc-coated housing | Provides corrosion protection |
Maintenance Schedule
| Maintenance Task | Frequency | Notes |
|---|---|---|
| Visual inspection | Every 5,000 miles | Check for boot tears, grease leaks |
| Boot condition check | Every oil change | Inspect for cracks, splits, or holes |
| Joint regreasing | Every 40,000 miles | Use high-temperature, high-pressure grease |
| Complete inspection | Annually | Check for play, noise, or vibration |
Maintenance Tip: Listen for clicking noises when turning, which is often the first sign of CV joint failure. Early detection can prevent more costly repairs and potential safety issues.
Essential Maintenance Tips
- Regularly check the CV boot for tears or damage that could allow contaminants to enter
- When replacing CV boots, thoroughly clean old grease and debris before applying new grease
- Always use manufacturer-recommended grease for optimal performance and longevity
- Check CV joint integrity during suspension maintenance or alignment
- Avoid aggressive driving habits that stress CV joints, such as hard acceleration while turning
- Don't exceed the vehicle's load capacity, which can put excessive strain on CV joints
- Consider having CV joints inspected after driving through severe conditions (deep water, mud)
- Replace both CV joints on an axle simultaneously for balanced performance
How to Choose Mazda 6 CV Joints
Selecting the right CV joint for your Mazda 6 requires careful consideration of several critical factors to ensure optimal performance, safety, and longevity.
OEM vs. Aftermarket
OEM (Original Equipment Manufacturer) parts match factory specifications exactly but typically cost more. Aftermarket parts offer various quality levels and price points.
Recommendation: Choose OEM for guaranteed fit or high-quality aftermarket from reputable brands
Complete Assembly vs. Individual Components
Complete CV axle assemblies include both inner and outer joints, boots, and hardware. Individual components allow for targeted replacement of only damaged parts.
Recommendation: Complete assemblies are often more cost-effective and reliable for high-mileage vehicles
Warning: Using incorrect CV joints can lead to premature failure, drivetrain damage, and potential safety hazards. Always verify compatibility with your specific Mazda 6 model, year, and drivetrain configuration.
Selection Criteria Checklist
| Selection Factor | What to Look For | Importance Level |
|---|---|---|
| Compatibility | Exact match for model, year, and drivetrain configuration | Critical |
| Quality | OEM or reputable aftermarket brands with quality materials | High |
| Warranty | Minimum 12-month coverage, preferably lifetime for premium parts | Medium |
| Price | Balance between budget and quality requirements | Medium |
| Supplier Reputation | Established sellers with positive reviews and good return policies | High |
| Installation Requirements | Availability of necessary hardware and instructions | Medium |
| Reviews | Consistent positive feedback from other Mazda 6 owners | Medium |
Expert Advice: Consider your driving habits and vehicle usage when selecting CV joints. If you frequently drive in demanding conditions or carry heavy loads, investing in premium-quality components will typically be more economical in the long run.
DIY CV Joint Replacement Guide
Replacing CV joints on a Mazda 6 can be accomplished by a determined DIY mechanic with the proper tools and knowledge. This procedure should be approached systematically and with attention to safety precautions.
Safety Notice: Always work on a level surface, use proper jack stands (never rely solely on a jack), and wear appropriate safety gear including eye protection. If you're uncomfortable with any step, consult a professional mechanic.
Required Tools and Materials
- Floor jack and jack stands
- Lug wrench
- Socket set and ratchet
- Torque wrench
- Pliers and screwdrivers
- Hammer
- CV joint puller or separator
- New CV joint or complete axle assembly
- CV joint grease (if replacing just the joint)
- New split pins and retaining clips
- Safety glasses and gloves
Preparation
Park the vehicle on level ground, engage the parking brake, and disconnect the battery's negative terminal. Gather all necessary tools and replacement parts before beginning.
Remove the Wheel
Loosen (but don't remove) the wheel lug nuts while the car is still on the ground. Raise the vehicle with a jack, secure it with jack stands, then completely remove the lug nuts and wheel.
Access the CV Joint
Depending on your Mazda 6 model, remove the necessary suspension components (typically lower ball joint, tie rod end, or control arm) to create enough clearance to access and remove the CV joint assembly.
Remove the Drive Axle
Locate and remove the retaining bolts connecting the axle to the differential. Carefully separate the CV joint from the wheel hub using appropriate tools, avoiding damage to surrounding components.
Replace the CV Joint
If replacing the entire axle assembly, install the new unit. If replacing just the CV joint, use a separator tool to remove the old joint, clean thoroughly, and install the new joint with fresh grease.
Reassemble Components
Reconnect the drive axle to the differential and wheel hub. Reinstall all suspension components that were removed, using new split pins and retaining clips where applicable.
Finalize Installation
Reinstall the wheel, hand-tighten the lug nuts, lower the vehicle to the ground, and torque the lug nuts to the manufacturer's specifications (typically 80-100 ft-lbs for a Mazda 6).
DIY Pro Tip: When removing the CV axle from the transmission/differential, there may be significant resistance. Rather than using excessive force, try tapping the inner CV joint housing with a rubber mallet while applying steady outward pressure.
Frequently Asked Questions
Can other CV joints be used on a Mazda 6?
While certain aftermarket CV joints may physically fit a Mazda 6, it's strongly recommended to use either OEM parts or aftermarket components specifically designed for your vehicle's make, model, and year. Using incompatible CV joints can lead to premature wear, poor performance, and potentially dangerous drivetrain failures. The design specifications of Mazda 6 CV joints are calibrated for the vehicle's specific weight, power output, and suspension geometry.
Can a damaged CV joint still be recycled?
Yes, damaged CV joints are recyclable as they're primarily made of steel alloy. Before recycling:
- Remove excess grease and contaminants
- Separate rubber boots and plastic components if possible
- Take to an auto parts recycler or metal recycling facility
Many auto parts stores also accept old CV joints for recycling when purchasing replacements. This environmentally responsible approach ensures the valuable metals in the joint can be reclaimed and reused.
Do CV joints come pre-greased?
Yes, new CV joints typically come pre-greased with high-temperature, high-pressure lubricant specifically formulated for CV joint applications. This factory-applied grease:
- Provides immediate protection upon installation
- Is precisely measured to fill the joint cavity without excess
- Meets manufacturer specifications for the specific joint design
However, regular maintenance is still required. Check the grease condition during routine inspections and consider re-greasing approximately every 40,000 miles or per your Mazda owner's manual recommendations. If replacing just the CV boot rather than the entire joint, you'll need to clean the old grease and apply new grease during the repair.
How can I tell if my Mazda 6 CV joint is failing?
Several symptoms indicate potential CV joint failure in a Mazda 6:
- Clicking noise when turning: The most common symptom, particularly noticeable during sharp turns
- Grease on the inside edge of the tire: Indicates a torn CV boot that's allowing grease to escape
- Vibration during acceleration: May indicate an inner CV joint problem
- Knocking noises: Particularly when shifting from drive to reverse
- Clunking sound when accelerating or decelerating: Often signals a severely worn CV joint
Address these symptoms promptly, as continued driving with a failing CV joint can lead to complete failure and potential loss of drive power to the wheels.
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