Wheel Alignment vs. Tire Balancing: What's the Difference and Which Do You Need?
Wheel alignment adjusts the angles of your wheels so the tires point straight and sit flat on the road; tire balancing evens out the weight around each tire and wheel so it spins without vibrating. As Michelin puts it, alignment controls where the tire points, and balancing controls how it rotates. A pull to one side points to alignment; a shake at highway speed usually points to balance.
What is the difference between wheel alignment and tire balancing?
Alignment is an adjustment to your suspension; balancing is an adjustment to the tire and wheel assembly. According to AAA, alignment doesn't change the tire and wheel at all, while balancing adds small weights to the wheel to correct uneven weight distribution.
| Wheel alignment | Tire balancing | |
|---|---|---|
| What gets adjusted | Suspension angles: camber, toe and caster | Weight around the tire and wheel |
| Main symptom it fixes | Pulling, off-center steering wheel | Vibration in the wheel, seat or floor |
| Tire wear it prevents | Wear on the inside or outside edges | Irregular or cupped wear |
| How it's done | Car on an alignment rack, angles set to spec | Wheel spun on a balancer, weights added |
Sources: AAA, Michelin, Toyota.
How do you know if you need an alignment?
The classic signs are a car that pulls left or right on a straight road, a steering wheel that isn't centered when you're driving straight, and fast or uneven wear on the inside or outside edges of the tires (Michelin).
What does a technician adjust during an alignment?
Three angles, as AAA explains:
- Camber: the inward or outward tilt of the tire seen from the front.
- Toe: whether the tires point straight ahead when the steering wheel is straight. Off toe wears the inner or outer edges.
- Caster: the angle of the steering components where they meet the wheel, which affects how the car steers and corners.
How do you know if your tires need balancing?
Vibration is the giveaway. Michelin lists a steering wheel that shakes at highway speed, vibration through the seat or floor, and irregular or cupped tread wear as typical signs of unbalanced wheels.
Toyota recommends balancing after a tire rotation, after a flat tire is repaired, or during routine scheduled maintenance.
Can you need one without the other?
Yes. A car can be perfectly aligned and still vibrate because a wheel is out of balance, and a perfectly balanced wheel can still wear unevenly if the alignment angles are off (Michelin). They fix different problems, so fixing one won't cure a symptom caused by the other.
That's why a good shop starts by asking what you're feeling:
- Car drifts or the wheel sits crooked: check alignment first.
- Shake that shows up at a certain speed: check balance first.
- Uneven wear on the edges: alignment. Cupped or patchy wear: balance, and possibly worn suspension parts.
- New tires going on: both are recommended (Michelin).
When should you get both done?
Michelin recommends both services when you mount new tires, and an alignment check after you hit a significant pothole or curb (Michelin).
At USA Tires & Auto Repairs in Plantation, both happen under one roof: wheel alignment, high speed balance and road force balance. If you're trying to pick between the two balance types, our road force vs. high speed balance guide walks through it, and for the alignment side, see wheel alignment cost in Plantation.
If the shaking doesn't go away after balancing, the cause may be elsewhere. Our guide to car shaking at highway speed covers the other usual suspects.
Frequently asked questions
What is the difference between wheel alignment and tire balancing?
Alignment adjusts the suspension angles so your tires point straight and contact the road evenly. Balancing adds small weights to each wheel so the tire and wheel spin evenly without vibrating. Alignment fixes pulling and edge wear; balancing fixes vibration.
Does balancing fix a car that pulls to one side?
No. Pulling to one side is a classic sign of misalignment, according to Michelin. Balancing corrects vibration, not the direction the car travels.
Is it alignment or balance if my steering wheel shakes?
A steering wheel that shakes at highway speed is a common sign of unbalanced wheels. A steering wheel that sits off-center while you drive straight points to alignment.
Should I get an alignment and balance at the same time?
It makes sense when you're mounting new tires, since Michelin recommends both then. Otherwise, get the service that matches your symptom, and have the alignment checked after a hard pothole or curb hit.
Key takeaways
- Alignment sets suspension angles; balancing evens out weight in the tire and wheel.
- Pulling, a crooked steering wheel and edge wear point to alignment.
- Vibration at speed and cupped wear point to balance.
- One doesn't fix the other, so match the service to the symptom.
- Both are recommended when new tires go on.