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3.90's????? maybe

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Old 02-08-2006, 03:57 PM
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Question 3.90's????? maybe

OK does anyone make a 3.90 gear for our 7.5? If my calculations are correct, I have 3.90's Input?????? Thanks alot.

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Old 02-08-2006, 06:47 PM
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how many teeth on the ring and how many on the pinion? i dont think you have a 3.90, at least not for a 7.5" gm. maybe a ford 7.5".
Old 02-08-2006, 06:51 PM
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I havnt broke into it yet... just useing a calulator on another forum.... Just wondering if they made them you our's... I am going to brreaking into it this weekend.




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