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Old 04-08-2010, 05:32 PM
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If this is an older GM rear end then there will be a code stamped into the right axle tube on the front side close to the center. If it's a Camaro rear end then go to a Camaro web sight and check the codes. If it's a Chevelle rear end then do the same on a Chevelle web sight. This code will tell you what the original gears were and what differential it had, but that might not be what is in it now.
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