How Often Should I Do Wheel Alignment? The Real Deal, Yo!

Yo, so, like, how often should I do wheel alignment? It’s a question that pops up, right? Think of it like this: your car’s got a lotta moving parts, and they’re constantly gettin’ beat up by the road. From potholes to crazy turns, your wheels take a serious pounding. Keepin’ those wheels straight is key to a smooth ride and makin’ sure your tires last.

We’re gonna break down everything you need to know, from the streets you cruise to the ride you choose.

We’re talkin’ about how driving habits, the type of car you drive, and even the tires you rock affect when you need an alignment. Plus, we’ll cover the signs your car’s tryin’ to tell ya somethin’ is wrong, like that weird pull to one side or uneven tire wear. Get ready to ditch the guesswork and get the real scoop on keepin’ your ride aligned and on point.

Factors Influencing Wheel Alignment Frequency

Understanding the factors that influence wheel alignment frequency is crucial for maintaining vehicle safety, performance, and tire longevity. Several elements contribute to the gradual or sudden misalignment of wheels, impacting how often you’ll need this service. These factors range from driving environments and vehicle types to tire characteristics and suspension components. Being aware of these elements allows for proactive maintenance and helps you make informed decisions about your vehicle’s upkeep.

The whispers say a wheel alignment is a ritual, not a chore. Ignoring it invites a fate worse than uneven tire wear. You might find yourself pondering the grip of the road, a thought that leads to questions of control, specifically, like what suvs are all wheel drive , as your car struggles to hold its path. But remember, the alignment’s call is constant, so heed it to stay safe on the road.

Driving Conditions and Alignment Needs

The environments in which you drive significantly impact wheel alignment. Different terrains and road conditions exert varying stresses on a vehicle’s suspension and steering systems, leading to alignment changes.

• City Driving: Frequent stops, starts, and navigating potholes, speed bumps, and curbs in urban environments can accelerate misalignment. The constant maneuvering and impacts put considerable strain on the suspension components.
• Highway Driving: While highway driving might seem less damaging, high speeds can exacerbate any existing alignment issues. Furthermore, road debris and the cumulative effects of minor impacts can gradually shift alignment angles.
• Off-Road Driving: Driving on unpaved roads, trails, or over rough terrain is particularly harsh on wheel alignment. The constant shocks, bumps, and uneven surfaces can quickly knock wheels out of alignment.

Vehicle Types and Alignment Changes

Different vehicle types are engineered with varying suspension geometries and are subjected to different driving demands, thus influencing alignment stability.

• Sedans: Generally, sedans are designed for on-road driving and tend to experience less severe alignment changes compared to vehicles used off-road. However, regular driving on poorly maintained roads can still lead to alignment issues.
• Trucks: Trucks, especially those used for heavy-duty work or towing, are subjected to greater stress on their suspension systems. This increased stress can result in more frequent alignment needs. The added weight and the nature of their use contribute to alignment changes.
• SUVs: SUVs often have a blend of on-road and off-road capabilities. Their alignment requirements depend on how they are primarily used. SUVs frequently driven off-road will require more frequent alignment checks compared to those used mainly for city driving.

Tire Size, Type, and Alignment Stability

The tires fitted to your vehicle play a significant role in alignment stability. The size and type of tires affect how well the vehicle maintains its alignment over time.

• Tire Size: Changing to larger or smaller tires than the manufacturer’s specifications can affect the alignment. Different tire sizes can alter the vehicle’s ride height and the angles of the suspension components, necessitating alignment adjustments.
• Tire Type: The type of tire can also influence alignment.
  • All-Season Tires: These tires are designed for a balance of performance in various conditions and typically have a moderate impact on alignment.
  • Performance Tires: Performance tires, with their stiffer sidewalls and aggressive tread patterns, may be more sensitive to alignment changes and can highlight existing issues more readily.

Suspension Components and Alignment Maintenance

The condition of your vehicle’s suspension components is directly linked to alignment stability. Worn or damaged parts can cause misalignment, even with proper driving habits.

• Shocks and Struts: These components absorb impacts and control wheel movement. Worn shocks or struts can lead to uneven tire wear and alignment problems because they no longer effectively dampen the forces acting on the wheels.
• Springs: Springs support the vehicle’s weight and maintain ride height. Sagging or broken springs can alter the vehicle’s alignment angles.
• Ball Joints and Tie Rod Ends: These components connect the wheels to the suspension and steering systems. Wear in these joints can cause looseness, leading to changes in alignment.

Driving Habits and Alignment Frequency

Certain driving habits can significantly increase the frequency with which wheel alignment is needed. This table provides a quick reference to how different driving habits influence the need for alignment.

Recognizing Signs of Misalignment: How Often Should I Do Wheel Alignment

It’s crucial to be aware of the telltale signs that your vehicle’s wheels are out of alignment. Recognizing these indicators early can prevent further damage to your tires and suspension components, ultimately saving you money and ensuring a safer driving experience. Being proactive about these symptoms allows you to address the issue promptly, maintaining optimal vehicle performance.

Common Symptoms Affecting Driving Experience

Misalignment often manifests in noticeable changes to how your car handles. These changes can directly impact your comfort and control while driving. Ignoring these symptoms can lead to more significant problems down the line.

• Vehicle Pulling to One Side: This is perhaps the most common symptom. The car consistently drifts to the left or right, even when the steering wheel is held straight. This indicates that one or more wheels are not properly aligned, causing the vehicle to deviate from its intended path.
• Off-Center Steering Wheel: When driving straight, the steering wheel might be tilted to one side. This is a clear indication of misalignment, even if the vehicle doesn’t visibly pull to one side.
• Wandering Steering: The vehicle feels unstable and requires constant steering corrections to maintain a straight line. This suggests that the wheels are not tracking properly.
• Difficulty Steering: Steering might feel heavier or more difficult than usual, especially at lower speeds. This can be caused by increased friction due to misalignment.
• Reduced Fuel Efficiency: Misalignment increases rolling resistance, forcing the engine to work harder and consume more fuel. You may notice a decrease in your miles per gallon.

Visual Cues Indicating Alignment Needs

Sometimes, the evidence of misalignment is readily apparent when you visually inspect your tires. Observing these visual clues can provide immediate insight into your vehicle’s alignment condition.

• Uneven Tire Wear: This is a significant indicator. Observe the tread pattern for irregularities.
• Tire Wear on One Edge: This often signals a camber or toe-in/toe-out issue. One side of the tire’s tread will wear down faster than the other.
• Feathering: This is a type of uneven wear where the tread blocks on the tire’s surface are worn down at an angle, creating a feathered or saw-tooth pattern.
• Diagonal Wear: This can result from a combination of misalignment issues, potentially indicating problems with both camber and toe.

Sounds Associated with Misalignment and Potential Causes

Sometimes, your vehicle will “tell” you about alignment problems through the sounds it makes. These auditory cues can provide valuable clues about the condition of your car’s alignment.

• Squealing Tires: Squealing tires, particularly when turning, can be a sign of excessive toe-in or toe-out. This friction can cause the tires to scrub against the road surface.
• Thumping or Rumbling Noises: These sounds, often heard at specific speeds, can be related to uneven tire wear. The irregular wear pattern causes the tires to contact the road surface unevenly, generating noise.
• Clicking or Clunking Sounds: While not always directly related to alignment, these sounds, especially when turning, could indicate damage to suspension components, which can subsequently affect alignment.

Uneven Tire Wear: Indicators of Alignment Problems

Understanding different tire wear patterns is essential for diagnosing alignment issues. Each pattern provides clues about the specific alignment angle that may be off.

• Wear on the Outer Edge: This often indicates excessive positive camber, where the top of the tire leans outwards. The tire’s outer edge bears the brunt of the wear. For example, consider a vehicle that frequently navigates sharp turns; this wear pattern might develop on the outer tires.
• Wear on the Inner Edge: This indicates excessive negative camber, where the top of the tire leans inwards. This type of wear often appears on vehicles that carry heavy loads or have been involved in a collision.
• Wear Across the Entire Tire, but More Pronounced on One Side: This suggests a toe-in or toe-out problem. If the wear is more pronounced on the outside, it could be toe-out; if it’s more pronounced on the inside, it could be toe-in. For instance, a vehicle that has recently hit a curb might display this wear pattern.
• Cupping: This wear pattern appears as dips or scallops around the tire’s circumference. It often results from worn shocks or struts, which allow the tires to bounce excessively, leading to uneven wear.
• Feathering (as mentioned earlier): This pattern, characterized by a saw-tooth edge on the tread blocks, typically results from incorrect toe settings.

Steps to Take When Suspecting Misalignment

If you suspect your vehicle has a wheel alignment issue, take these steps to address the problem. Prompt action is vital to prevent further damage and ensure safety.

• Observe Driving Behavior: Pay close attention to how your car handles, noting any pulling, wandering, or off-center steering.
• Inspect Tires: Examine your tires for any signs of uneven wear, such as wear on the edges, feathering, or cupping.
• Listen for Unusual Sounds: Be aware of any squealing, thumping, or clunking noises that may indicate an alignment problem or related suspension issues.
• Schedule an Alignment Check: Take your vehicle to a qualified mechanic or tire shop for a professional alignment check. They can use specialized equipment to measure and adjust the wheel angles to factory specifications.
• Follow Up on Recommendations: If the mechanic recommends any repairs or adjustments, have them completed promptly. Ignoring these recommendations can worsen the problem and lead to more costly repairs down the line.

Recommended Alignment Intervals

Understanding when to get your wheels aligned is crucial for maintaining your vehicle’s safety, performance, and longevity. While recognizing the signs of misalignment is important, knowing the recommended intervals provides a proactive approach to vehicle maintenance. Let’s delve into the specific guidelines, considering various factors that influence the frequency of wheel alignments.

General Recommendations for Wheel Alignment Frequency Based on Mileage

The most common recommendation for wheel alignment frequency is based on mileage. This approach offers a straightforward guideline for preventative maintenance.

• Generally, it’s advised to get a wheel alignment every 10,000 to 12,000 kilometers, or roughly every year.
• This is a general guideline, and the actual interval can vary based on driving habits, road conditions, and vehicle type.
• If you frequently drive on rough roads, experience potholes, or notice any of the signs of misalignment, you might need to get an alignment more frequently.
• Vehicles used for heavy-duty work, such as hauling or towing, often require more frequent alignments due to the increased stress on the suspension system.

Specific Recommendations for Alignment Based on Time Intervals

In addition to mileage-based recommendations, time-based intervals are also helpful, particularly for vehicles with low annual mileage or those stored for extended periods.

• A general recommendation is to get a wheel alignment at least once a year, regardless of the mileage.
• Time can affect alignment due to the natural settling of suspension components and changes in tire pressure.
• If you notice any changes in handling or tire wear, it’s always best to get an alignment check, even if it hasn’t been a year.
• Vehicles that are not driven frequently might still experience alignment issues due to environmental factors or the settling of components over time.

Manufacturer’s Recommendations for Wheel Alignment for Different Vehicle Makes and Models

Manufacturers often provide specific recommendations for wheel alignment based on the vehicle’s design and intended use. These recommendations are usually found in the owner’s manual.

• The owner’s manual is the best resource for the most accurate and specific alignment recommendations for your vehicle.
• Recommendations can vary significantly between different makes and models, even within the same brand.
• Some vehicles, especially performance cars or those with complex suspension systems, may require more frequent alignments.
• Following the manufacturer’s recommendations is crucial for maintaining your vehicle’s warranty and ensuring optimal performance.
• For example, a high-performance sports car might recommend an alignment every 5,000 miles, while a standard sedan might recommend every 10,000 miles.

Impact of Climate and Weather Conditions on Alignment Intervals

Climate and weather conditions can significantly affect wheel alignment intervals. Extreme temperatures, road salt, and frequent changes in weather patterns can all contribute to alignment issues.

• In areas with harsh winters, road salt and ice can accelerate the corrosion of suspension components, leading to misalignment.
• Extreme heat can cause tires to expand and contract, potentially affecting alignment.
• Potholes and rough roads, which are more common in areas with severe weather, can also damage suspension components and cause misalignment.
• If you live in an area with extreme weather conditions, you might need to get your wheels aligned more frequently.
• For example, if you live in a region that experiences harsh winters, getting an alignment before and after the winter season can be beneficial.

Common Misconceptions about Wheel Alignment Intervals

Many drivers believe that wheel alignment is only necessary if they feel a problem. This is a misconception. Regular alignment checks are a preventative measure.

Another misconception is that alignment is only needed after hitting a curb or pothole. While these events can certainly cause misalignment, it’s not the only cause.

Some people also believe that if their tires look straight, their alignment is fine. Tire appearance alone is not a reliable indicator of proper alignment.

The Wheel Alignment Process

Understanding the wheel alignment process can empower you to make informed decisions about your vehicle’s maintenance. This section will delve into the steps involved, the equipment used, and the different types of alignment services available, equipping you with the knowledge to maintain optimal vehicle performance and safety.

Basic Steps Involved in a Wheel Alignment Procedure

The wheel alignment process, although seemingly straightforward, involves precision and specialized equipment. It’s a series of carefully executed steps designed to ensure your vehicle’s wheels are correctly aligned with each other and the road.The process typically unfolds as follows:

• Vehicle Preparation: The vehicle is first inspected for any pre-existing issues, such as worn tires or damaged suspension components, which could interfere with the alignment process. The tires are inflated to the manufacturer’s recommended pressure.
• Equipment Setup: The vehicle is then positioned on an alignment rack. Sensors or targets are attached to the wheels to measure their angles.
• Measurement and Data Acquisition: The alignment machine measures various angles, including camber, caster, and toe, comparing these measurements to the manufacturer’s specifications.
• Adjustment: The technician adjusts the suspension components (tie rods, control arms, etc.) to bring the wheel angles within the specified range. This may involve loosening and tightening bolts, or using specialized tools to make the necessary adjustments.
• Verification: After adjustments, the alignment machine re-measures the angles to ensure they are within the acceptable tolerances.
• Road Test (Optional): In some cases, a short road test is performed to verify the alignment and ensure the vehicle handles correctly.

Equipment Used in a Professional Wheel Alignment Service

Professional wheel alignment services rely on sophisticated equipment to ensure accuracy and precision. The following are the core components typically found in a modern alignment shop:

• Alignment Rack: This is a platform designed to hold the vehicle securely and level, providing a stable base for the alignment process. Some racks are equipped with hydraulic lifts for easier vehicle positioning.
• Alignment Machine: This is the heart of the alignment process. There are different types of alignment machines, but they all serve the same basic function: to measure and display the wheel angles. Common types include:
  • Laser Alignment Systems: These systems use lasers to project beams onto targets attached to the wheels. The position of the beams is then used to calculate the wheel angles.

  • Camera-Based Alignment Systems: These systems use cameras to capture images of targets attached to the wheels. Sophisticated software analyzes the images to determine the wheel angles.
• Targets/Sensors: These devices are attached to the wheels and provide reference points for the alignment machine to measure the wheel angles. They can be passive (reflecting laser beams) or active (transmitting data wirelessly).
• Computer and Software: The alignment machine is controlled by a computer that runs specialized software. This software stores the manufacturer’s specifications for different vehicles and guides the technician through the alignment process.
• Specialized Tools: Technicians use a variety of tools, such as wrenches, sockets, and pry bars, to adjust the suspension components. Some adjustments may require specialized tools, such as camber/caster adjustment tools.

Step-by-Step Procedure for a Visual Inspection of Wheel Alignment

While a professional alignment service requires specialized equipment, a visual inspection can provide an initial assessment of potential misalignment. This is a basic assessment and doesn’t replace a professional service, but can identify potential issues.Here’s a step-by-step guide for a visual inspection:

• Tire Condition: Examine the tires for uneven wear patterns, such as excessive wear on the inner or outer edges. This is a common sign of misalignment.
• Steering Wheel Position: Park the vehicle on a level surface and observe the steering wheel. Is it centered when the wheels are pointed straight ahead? If the steering wheel is off-center, it could indicate a toe or thrust angle issue.
• Vehicle Stance: Observe the vehicle from the front and the rear. Is the vehicle sitting level? If one side appears lower than the other, it could indicate a problem with the suspension, which can affect alignment.
• Wheel Position: Look at the wheels from the front. Are they perfectly vertical (camber)? If the top of the tire leans inward (negative camber) or outward (positive camber), this could be a sign of misalignment. However, some vehicles are designed with a slight camber angle.
• Toe-In/Toe-Out Check (Approximate): Stand in front of the vehicle and visually assess if the front of the tires point slightly inward (toe-in) or outward (toe-out). While difficult to measure precisely without tools, significant toe-in or toe-out can be noticeable.
• Professional Inspection: Remember that a visual inspection is only a preliminary assessment. It’s crucial to have a professional alignment service performed to diagnose and correct any alignment issues accurately.

Difference Between Two-Wheel and Four-Wheel Alignment, Highlighting the Advantages of Each

The type of alignment service required depends on the vehicle’s design and the specific issues being addressed. Both two-wheel and four-wheel alignments serve distinct purposes.

• Two-Wheel Alignment: This type of alignment focuses on adjusting the front wheels only. It’s typically suitable for vehicles with a solid rear axle (like many older trucks and some rear-wheel-drive vehicles) or when the rear wheels are not adjustable. The technician adjusts the front wheels to the specifications, considering the thrust angle (the direction the rear wheels are pointing).
• Four-Wheel Alignment: This is the more comprehensive type of alignment. It involves adjusting all four wheels, ensuring they are aligned with each other and the vehicle’s center line. This is the recommended service for most modern vehicles with independent rear suspension. It provides the most accurate alignment, addressing all relevant angles on all four wheels.

Four-wheel alignments offer several advantages:

• Improved Handling and Stability: Correcting the alignment of all four wheels enhances the vehicle’s handling, especially during cornering and on uneven road surfaces.
• Reduced Tire Wear: Proper alignment minimizes uneven tire wear, extending the life of your tires.
• Enhanced Fuel Efficiency: Misalignment can increase rolling resistance, leading to reduced fuel economy. A four-wheel alignment helps optimize fuel efficiency.
• Precise Steering: A four-wheel alignment ensures the steering wheel is centered and the vehicle tracks straight, enhancing driver comfort and safety.

Different Types of Wheel Alignment Services Offered, How often should i do wheel alignment

Different types of wheel alignment services cater to varying needs and vehicle types. These services are typically categorized based on the number of wheels aligned and the scope of adjustments. The table below Artikels the common types of wheel alignment services.

DIY vs. Professional Alignment

Choosing between a do-it-yourself (DIY) wheel alignment and a professional service involves weighing various factors, including cost, skill level, and the desired outcome. Understanding the pros and cons of each approach is crucial for making an informed decision that ensures your vehicle’s safety and optimal performance. This section explores the considerations involved in choosing the right path for your wheel alignment needs, offering insights to guide you toward the best solution for your situation.

Advantages and Disadvantages of DIY Wheel Alignment

DIY wheel alignment can be appealing due to its potential cost savings and the satisfaction of working on your own vehicle. However, it also presents challenges that must be carefully considered.

• Advantages:
  • Cost Savings: The primary advantage is the potential to save money on labor costs, which can be significant, especially if you need frequent alignments.
  • Convenience: You can perform the alignment at your own pace and schedule, without needing to book an appointment.
  • Learning Experience: DIY alignment offers a hands-on learning opportunity, allowing you to understand your vehicle’s suspension system and how it functions.
• Disadvantages:
  • Time Commitment: DIY alignment can be time-consuming, requiring several hours to complete, especially for beginners.
  • Skill Level Required: It demands a certain level of mechanical aptitude and experience. Incorrect adjustments can lead to poor handling and accelerated tire wear.
  • Tool Investment: You’ll need to purchase specialized tools, which can be expensive upfront, although the cost can be offset over time if you frequently align your vehicle.
  • Accuracy Limitations: DIY methods are generally less precise than professional equipment, potentially leading to alignment inaccuracies.

Limitations of DIY Alignment Methods and Tools

DIY alignment methods and tools have inherent limitations that can impact the accuracy and effectiveness of the alignment process. Understanding these limitations is essential for setting realistic expectations.

• Tool Precision: DIY tools, such as basic alignment kits or angle finders, may not offer the same level of precision as professional equipment. Professional alignment machines use laser technology and sophisticated sensors to measure and adjust alignment angles with high accuracy.
• Measurement Accuracy: DIY methods often rely on visual measurements and manual adjustments, which are susceptible to human error. For example, using a tape measure to check toe-in can be less accurate than using a laser alignment system.
• Lack of Specialized Equipment: DIY setups typically lack specialized equipment like frame-straightening machines, which are necessary for addressing significant structural damage.
• Complexity of Adjustments: Some vehicles have complex suspension systems with multiple adjustment points. DIY alignment might not be able to address all the necessary adjustments for optimal performance.
• Environmental Factors: Factors like an uneven surface where you are working can affect measurements. Professional shops have dedicated alignment bays with level floors.

Selecting a Reputable Alignment Shop

Choosing a reputable alignment shop is crucial for ensuring accurate and reliable service. Consider these factors when selecting a shop.

• Reputation and Reviews: Research online reviews and testimonials from other customers. Look for shops with a consistently positive reputation for quality workmanship and customer service. Websites like Yelp, Google Reviews, and the Better Business Bureau can provide valuable insights.
• Equipment and Technology: Inquire about the shop’s alignment equipment. Modern alignment machines use advanced sensors and software to provide precise measurements and adjustments. Shops using older equipment might not be able to achieve the same level of accuracy.
• Certifications and Expertise: Check for certifications, such as those from ASE (Automotive Service Excellence), which indicate that the technicians have undergone training and have demonstrated competence in their field.
• Transparency and Communication: A reputable shop will explain the alignment process clearly, including what measurements they will take and what adjustments they will make. They should also be willing to answer your questions and provide a detailed report of the alignment results.
• Pricing and Warranty: Compare prices from different shops, but don’t solely base your decision on cost. Ask about warranties on the alignment service, which can protect you if any issues arise.

What to Expect During a Professional Wheel Alignment Service

A professional wheel alignment service typically involves a series of steps designed to ensure your vehicle’s wheels are correctly aligned.

• Vehicle Inspection: The technician will inspect your vehicle’s suspension components, including ball joints, tie rods, and bushings, to identify any worn or damaged parts that could affect the alignment.
• Preparation: The vehicle is placed on an alignment rack, and the technician attaches sensors to the wheels. The car is often “bounced” to settle the suspension.
• Measurement: The alignment machine uses sensors to measure the current alignment angles (toe, camber, and caster) of your wheels.
• Adjustment: The technician adjusts the alignment angles to match the manufacturer’s specifications. This may involve adjusting tie rods, camber bolts, or other suspension components.
• Final Measurement and Report: After making the adjustments, the technician remeasures the alignment angles to confirm they are within the specified range. You will receive a printout detailing the before-and-after measurements.
• Test Drive: Some shops may include a short test drive to ensure the vehicle handles properly after the alignment.

Essential Tools and Equipment for a Basic DIY Wheel Alignment

Performing a basic DIY wheel alignment requires specific tools and equipment. This list Artikels the essentials for getting started.

• Wheel Alignment Kit: This may include a toe gauge or string and measuring devices to check and adjust toe-in.
• Jack and Jack Stands: Used to safely lift and support the vehicle while you work on the suspension. Always use jack stands for safety.
• Wrench Set: Needed to loosen and tighten the adjustment bolts on your vehicle’s suspension components.
• Level or Angle Finder: Helps measure camber and caster angles.
• Tape Measure: Useful for checking toe-in with the string method.
• Marker: To mark the positions of components before making adjustments, aiding in returning them to their original settings if needed.
• Gloves and Safety Glasses: Essential safety gear to protect yourself.
• Owner’s Manual or Alignment Specifications: To find the correct alignment specifications for your vehicle.

Final Thoughts

Alright, so we’ve covered the basics of wheel alignment, from the factors that mess with it to how to spot the signs. Remember, stayin’ on top of your alignment ain’t just about a comfy ride; it’s about safety and savin’ cash on tires. Now you’re equipped to make the call when it’s time for an alignment. Keep your wheels straight, your ride smooth, and your wallet happy.

Peace out!

Q&A

What happens if I don’t get my wheels aligned?

Ignoring your alignment can lead to uneven tire wear (bye-bye, tread!), a wonky steering feel, and even put extra stress on your suspension. Basically, it’s a recipe for expensive repairs down the line.

How long does a wheel alignment take?

Typically, a professional alignment takes about an hour or so. But hey, it’s totally worth it to keep your car cruisin’ smoothly.

Can I align my own wheels at home?

Technically, yeah, but it’s tough to get it perfect without the right equipment. You might get a rough idea, but for a pro-level alignment, hit up a shop.

How much does a wheel alignment cost?

Prices vary, but expect to pay around $75-$150. It’s a small price to pay for a smoother, safer ride and longer-lasting tires.

Do I need to get an alignment after getting new tires?

Yep! It’s always a good idea to get an alignment when you get new tires to ensure they wear evenly and you get the most life out of them.