Distortion of the control arm during bushing installation can cause:

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When you press bushings into a control arm, the goal is to maintain the arm’s true shape and alignment. If the arm is forced or pressed with misalignment, it can bend or warp. That distortion changes the suspension geometry, especially camber and toe, which directly affects how the wheel sits relative to the road. The result is unpredictable steering behavior, uneven tire wear, and degraded handling. So the distortion of the control arm is the expected consequence of improper bushing installation. The other options don’t fit because they imply no effect, improved feel, or longer life, none of which occur when the arm is deformed during installation.