Quote:
Originally Posted by felix0121
only a front suspension (maybe the spring? I don't know its part name exactly) once replaced.
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Bushings on the rear arms are possibly quite soft at 140k miles. Although alignment looks good during a static state, worn bushings on control arms can allow excessive toe and camber changes when car is in motion (namely during acceleration and deceleration), causing the uneven and accelerated wear you had.
I've had the same tires before (on a 240sx, SPL arms), no issue with tire wear whatsoever.