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Jimmy72custom · 10-14-2007, 04:17 PM

I have a 72 Jimmy 350 / 465 / 307 / 33x12.50x15 / I run about 2200 rpm @ 65 MPH. I do notice the freeway hills. I have been thinking about a gear venders OD, to raise my 3rd gear to for the freeway hills. I have not checked my MPG, something I should do.

10-14-2007, 04:17 PM	#17
Jimmy72custom Registered User Join Date: Apr 2004 Location: Willits Ca Posts: 261	Re: Gear ratios I have a 72 Jimmy 350 / 465 / 307 / 33x12.50x15 / I run about 2200 rpm @ 65 MPH. I do notice the freeway hills. I have been thinking about a gear venders OD, to raise my 3rd gear to for the freeway hills. I have not checked my MPG, something I should do.