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Old 10-25-2010, 03:41 PM
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what gear ratio

just wanted to know what gear ratio does a 4.3 chevy el camino 85 have on the differential . im trying to put a posi in there but need to know the gear ratio so everything else works fine. help
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Old 10-25-2010, 05:32 PM
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Best way to check is remove the Diff cover and count the Ring & Pinion gear teeth or check the numbers stamped on the Ring gear.
SPID sticker will have the codes but rear could've been changed.
Jack up one wheel, turn 2 revolutions & count Yoke revolutions is another way but, isn't exact.
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