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9 inch question

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Old Feb 2, 2008 | 01:08 PM
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9 inch question
Will the center section from a 73 rear bolt into a 60 housing with minimal problems? I want to change the 3:70 gears I have to something more highway friendly.
 
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Old Feb 2, 2008 | 01:52 PM
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What are the spline counts on each axle?
 
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Old Feb 2, 2008 | 03:40 PM
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I'm assuming both are 28.
 
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Old Feb 2, 2008 | 03:53 PM
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They could be 31 or 28 so that will decide the outcome.
 
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Old Feb 2, 2008 | 04:03 PM
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Ok, I misspoke. both axle flanges have 2 holes with a dimple in the center, so I believe that makes them both 31 spline
 
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Old Feb 2, 2008 | 04:15 PM
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As long as the splines are the same they should bolt right up. What ratio is it?
 
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Old Feb 2, 2008 | 05:10 PM
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as far as I can tell without pulling it out, it's a 2.75
 
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Old Feb 2, 2008 | 05:23 PM
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Do you still have a Y-block in it? I sure would like to know how this comes out. I have 3.00 gears for mine but I have not done it yet.
 
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Old Feb 2, 2008 | 05:29 PM
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Walston, at present it has a 223, but a transplant is in the future. I have a 292, a 351W and a 300 I6 that I could use.
 
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