if you need one,please quit driving,and repair.Mine screws into either block or head.with a spring.I heard you unscrew,and reinstall.Their are also hyd. tensioners too.I don't know if their different.You might need to install chain rails too.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt