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Old 23-10-10, 13:56
Grant Bowker Grant Bowker is offline
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Join Date: Jul 2006
Location: Ottawa, Canada
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The parts manuals claim that both 4 and 6 bladed fans were used on Chevs. They also indicate that other parts such as water pump assemblies are different depending on which fan is fitted. I don't have information to make it clear if this was a running change, a difference depending on planned theatre of use, depended on weight class or body type to be fitted or completely random.
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