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MazdaMatt · 07-24-2008, 10:22 AM

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?

07-24-2008, 10:22 AM	#22 (permalink)
MazdaMatt Master EcoModder Join Date: Jun 2008 Location: London, Ontario Posts: 1,096 2k2Prot5 - '02 Mazda Protege5 90 day: 33.82 mpg (US) Thanks: 0 Thanked 17 Times in 14 Posts	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?