Took a good look at the chain today...It looks perfectly fine....but look at this guide (tensioner guide = name?)



Replace or is this normal?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k