The original mounting stud nut does not thread correctly or damages the new KYB shock/strut upper mounting stud threads.

Always use the new nut supplied! When a threaded nut is included with the KYB shock or strut it is necessary to use the new nut: Do not re-use the old one. For production purposes and quality consistency, KYB may supply a special nut that matches the new mounting stud.

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