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Old 08-25-2006, 05:42 PM
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jakeshoe jakeshoe is offline
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Your mechanic friend is incorrect, they never installed a 2.75 ratio from GM.
They did install straight cut planets.

Why would you have to change ratios to go to an OD? The 200-4R has a 2.74 low ratio, and a .67 OD, it would work well with most rear ratios.
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