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It don't have a timing chain and if it did it would out last the engine. It should have a timing belt and it should be replaced about 60 thousand miles.

Sorry I must disagree with my friend who is very knowledgable. The 3.5 Liter and 3.9 Liter Chevy V6 has a timing chain and not a belt. The chain will last the life of the engine.

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14y ago

What else can I help you with?