What is frame straightening, and when is it needed?
Frame straightening corrects a vehicle structure that has been pushed out of line. It matters because the frame or unibody holds the wheels, suspension and crumple zones in the right place. If it sits even slightly off, you can see uneven tire wear, a pull to one side or doors that never close quite the same way.
Not every crash needs it. A light tap on a bumper cover often does not touch the structure. A hit to a wheel, a rear-end impact at freeway speed or a hard side strike is more likely to. Ask the shop how they checked for structural movement, and ask to see the measurements if the vehicle was pulled.
- Trucks and many older vehicles have a separate frame that can bend or twist.
- Most newer cars and crossovers use a unibody, where the body and structure are one piece.
- Either type should be measured before and after the repair.

