Why alignment shifts after a collision. The alignment of a modern vehicle is set at the factory to OEM specification — three angles per wheel (toe, camber, caster) plus thrust angle and rear toe — and tuned for tire wear, steering feel, and ADAS sensor reference. A collision applies force through the suspension and frame in ways that exceed normal driving loads. Even a 15-mph impact can bend a control-arm bushing, shift a strut tower a few millimeters, or knock a tie rod end out of its set position. The car may still drive — the visible damage might just be a bumper cover and a fender — but the geometry that keeps the wheels straight has moved. The driver feels it as a pull, an off-center steering wheel, or vibration above 55 mph. Some shifts are subtle enough to drive past for weeks before tires start wearing on the inside or outside edge. By that point the alignment cost is the same but you've also burned through $400-$1,200 in tire life.
The 5 signs you need an alignment after a collision.
| Sign | What it means | Action at OAB |
|---|---|---|
| 1. Car pulls left or right | Camber or caster is out of OEM spec on one side. Often happens after front-corner impacts even when the bumper looks fine. | Measure all four wheels on the rack; align before delivery. |
| 2. Steering wheel is off-center on a straight road | Toe is unequal side-to-side, or thrust angle has shifted (rear axle no longer parallel to center). Common after rear-end collisions. | 4-wheel alignment with thrust-angle correction. |
| 3. Uneven tire wear (inner or outer edge) | Camber or toe has been out long enough to chew the tires. Means the alignment shift was likely already there or has been there since the wreck. | Alignment check + tire-wear documentation. We flag worn tires that may need replacement before alignment can hold. |
| 4. Any suspension or wheel impact in the wreck | Curb hit, pothole at speed, side-impact at the wheel, lower-control-arm contact, or wheel/tire visibly damaged in the photos. | Alignment is mandatory before delivery — we don't release the car otherwise. |
| 5. Frame straightening was done | Pulling on a frame or unibody changes reference points for the entire suspension geometry. Alignment is the final verification that the structural repair was correct. | Alignment is mandatory + ADAS recalibration in most cases — see our ADAS page. |
How we actually do it — measure, document, align, verify. Step 1: measure — the vehicle goes on a Hunter or equivalent alignment rack with the suspension at ride-height and the OEM specifications loaded for the year/make/model/trim. We capture the as-found readings for all four wheels — toe, camber, caster, thrust angle, and SAI (steering axis inclination) where the OEM spec sheet calls for it. Step 2: document — the as-found print-out goes into the repair file with the date, technician, and customer signature. If the readings are inside OEM tolerance, that's the end of the alignment process and the print-out is part of the delivery packet. Step 3: align — if any axis is out, we adjust to the OEM mid-spec target (not just to the edge of tolerance), so the geometry has margin against future settling. Step 4: verify — final print-out with all four wheels green-flagged inside spec goes into the repair file alongside the as-found print-out. The customer gets both. This is the same process I-CAR teaches as best practice in I-CAR Repairability Technical Support wheel-alignment guidelines.
Why "measure first, align if needed" beats "always align" or "never align." Some shops align every collision repair regardless of damage type. That over-bills the customer and the carrier. Other shops skip alignment unless the customer specifically asks. That under-repairs the car and shows up months later as tire wear or a steering complaint. Our standard is to measure on the rack on every collision where the damage could have shifted alignment — front impacts, side impacts at or near the wheels, rear-end collisions hard enough to push the rear axle, anything with curb hit, and anything where structural repair touched a suspension reference point. If the as-found readings are inside spec, the customer pays nothing and the car is delivered. If readings are out, we align and document. The carrier sees a measure-first, align-when-justified pattern that almost never gets pushback on the supplement. It's also defensible if the case ever needs an attorney or DV appraisal trail (see our attorney coordination page for how the documentation flows in that case).
Cost in Arizona and how it gets billed. A 4-wheel alignment in the Phoenix Valley typically runs $99 (basic, fixed-rear-suspension vehicles) to $179 (most modern vehicles with adjustable rear toe + camber, plus thrust-angle correction). Premium/performance vehicles with full adjustable suspension or aftermarket lift kits run $179-$249. On insurance claims with collision damage that justified the alignment check, we write the alignment as a line item on the supplement with the as-found print-out attached as documentation. Approval is routine — adjusters see this every day. If the carrier's first estimate didn't include alignment and we found out-of-spec readings on the rack, we write the supplement at the time of finding and submit it with the print-out. See how supplements work for the full workflow. Customer right-of-choice on shop selection is protected by ARS §20-468 — the carrier doesn't get to dictate where the alignment is performed.
What to do if you suspect a missed alignment. If your car was repaired elsewhere and you're now noticing pull, off-center steering, or premature tire wear within 6-12 months of the collision: bring it in. We'll measure on the rack at no charge, give you the print-out, and walk through whether the readings are consistent with a missed post-collision alignment. If they are and the original carrier's claim file shows alignment was billed but the readings are out, that's a documentation problem the carrier needs to know about. If alignment wasn't billed at all, the carrier may still owe the alignment as a delayed supplement on the original claim. Bring the original repair receipt if you have it. Call Mesa at (480) 844-4858, Gilbert at (480) 656-9202, or Scottsdale at (480) 590-3135. Background: CCC Crash Course Q4 2025 on alignment-supplement frequency in modern collision repair, BBB tips on choosing a body shop.