Should I Get New Tires?

When It Makes Sense

• Good fit: Your existing tires show uneven tread wear, sidewall damage, or are close to the minimum legal tread depth. Installing fresh tires first ensures the alignment will be calibrated to a uniform, predictable contact patch.
• Good fit: You are planning a major alignment correction (e.g., after suspension repair or a collision) and want to guarantee the new alignment settings are applied to the new tire footprint, maximizing the lifespan of the fresh rubber.

When You Should Avoid It

• Warning sign: Your tires are still relatively new (over half their rated mileage) and exhibit even wear. Replacing them before an alignment adds unnecessary expense because the alignment can be performed on the existing set without compromising results.
• Warning sign: The alignment issue is minor (a few degrees of toe or camber) and you only need a routine check‑up. In such cases, a simple alignment adjustment can be done first; you can replace tires later if needed.

Pros and Cons

Pros

• New tires provide a consistent tread depth, allowing the alignment technician to set angles based on a uniform contact patch, which can improve handling and tire longevity.
• Doing both at once often saves labor costs, as many shops bundle tire installation and alignment into a single service appointment.

Cons

• If the tires are still in good condition, you may be paying for new rubber that hasn’t yet benefited from the alignment, leading to unnecessary expenditure.
• Installing new tires before confirming the alignment could mask underlying suspension problems; the alignment might need to be redone after the tires wear, adding future costs.

Decision Checklist

• Is the tread depth on any tire below the legal minimum or showing uneven wear patterns?
• Will the alignment be a routine check‑up or a major correction following suspension work or an accident?
• Does the service shop offer a combined price discount, and have you compared that to doing each service separately?

Alternatives to Consider

You could first get a professional alignment on your current tires. If the alignment reveals that the tires are wearing unevenly because of misalignment, you can then decide whether to replace them immediately or wait until the next scheduled tire change. Another option is to rotate and balance the existing set, which may correct minor wear issues without the need for new tires.

Final Recommendation

For most drivers, the prudent approach is to assess tire condition first. If the tires are worn, damaged, or have uneven tread, replace them before the alignment to ensure the new geometry is set on a uniform surface. If the tires are still relatively new and evenly worn, have the alignment performed on the existing set and replace tires later based on mileage or wear. Always consult a qualified tire technician or alignment specialist when in doubt, especially after major suspension work or collision repair.