Differential ratios

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Differential ratios

Home > Discussion Forum > Mechanic's Corner - Transmissions

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Differential ratios by Terry
	In an effort to improve the miserable fuel economy of my 78 Dodge class C (440-1, Carter TQ 4bbl), I'd like to take the differential from its current 4.10 ratio to a 2.71 or 2.94. My calculations say those should put the RPM in the low 2000's at 65 MPH. Anyone have experience with taller ratios like that? Any problems to avoid? Thanks much.

All Messages in Thread		Author	Date
	Differential ratios	Terry	6-19-07
	Re: Differential ratios	Lee	7-28-07