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Old 08-15-2014, 02:34 PM
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Does any body no what this g12b373 gear set is fits a 1 bolt chevy
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Old 08-15-2014, 04:44 PM
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Looks like a standard 3.73 3 series gearset. Google didnt turn up anything with that part number.
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Old 08-16-2014, 06:45 PM
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No I googled it didn't bring up nothing think its a stock gm gear
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Old 08-16-2014, 08:00 PM
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measuring the diameter (largest dimension tooth to tooth) will tell it application.
7.5",8.2",8.5",8.9".
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Old 08-17-2014, 05:22 PM
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That will tell What kind it is
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Old 08-17-2014, 07:21 PM
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If it's GM or for a GM
7.5" and 7.625" is for the little 10 bolt
8.2" is for a GM 10 bolt
8.5" and 8.625" is for a GM 10 bolt
8.9"(8 7/8") is for a GM 12 bolt

there are others smaller and larger than the above listed range.
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Old 08-21-2014, 12:27 AM
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Got my new gears in the other ones was a stock gm 373 went with a set of motive 373 gears so much quiter and a lot stronger thanks for the help guys
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