YES!

Even if it still seems fine to drive.

Last one I fixed, the guy was driving it around on the street after busting the rear at the track. I convinced him to pull it and let me look at it, before he took it to the track again. Half the springs were crushed, rollers loose, half were actually still functioning enough to drive the car. It would not have survived the first hit.


If the results don't match the theory, change the theory.