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Old 07-24-2008, 10:22 AM   #22 (permalink)
Master EcoModder
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
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What about changing my final drive gear so my shifts happen at high speeds and my highway cruise is at a lower RPM? What would that cost me? Does this change happen in the diff or the tranny?
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