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Old 04-26-2008, 03:34 AM
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HUMTECH HUMTECH is offline
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Join Date: Sep 2003
Location: Canada
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Default Re: Service 4-Wheel Drive

Serice 4wd message is not a "needs service" message. It only comes on when there is a system fault. Depending on vehicle usage, city driving and mild off roading(no water fording) you can service your diffs at 80,000 km. GM says 100,000km but i always recommend a little earlier just to be on the safe side.
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