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Old 12-02-2006, 05:04 PM   #1
crosby
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Join Date: Aug 2004
Location: New Hampshire
Posts: 437
how to tell gear ratio?

I am trying to determine the gear ratio on a parts truck I have, a 1978 GMC K35, which has a dana 60 front and 14 bolt rear. I pulled the rear diff cover off, and can't even see the pinion teeth. I suppose I could jack up one side and spin the ring to count those teeth, but then what? I don't see any obvious markings anywhere on the housing, or anywhere on the truck? Thanks guys!
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1978 Chevrolet K10 stepside
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