This vehicle has experienced the front coil spring cracking on the right front, the left front cracked at 114K miles. This is a very common issue with 2015-2017 Toyota 4Runner TRD-Pro, it is a design defect in the way the coil spring terminates and sits on the top hat and bottom spring perch. Toyota has discontinued the defective parts and redesigned the spring perch on the updated strut and uses a different spring, but it is not recalled and should be as this is a safety defect. A broken coil spring can cause sudden loss of control of the vehicle resulting in a crash and even death.