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Old 07-24-2007, 05:00 PM   #1
Baby John
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Join Date: Jul 2007
Location: Mendenhall MS
Posts: 222
What Gear Ratio

I know I could pull the diff cover and count the teeth on the ring gear and the pinion gear to determine gear ratio, but I'm being a bit lazy. Was there a typical gear ratio on the '72 GMC? Maybe a couple possibilities I might could narrow it down too? I'd say I'm geared pretty low but that's about all I could say. @ highway speeds I'm revving pretty good, and it feels pretty torquey at take off.

Best guesses?
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