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Axle spline count

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Old Feb 26, 2006 | 06:34 PM
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Machman
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From: Wildwood
Axle spline count

Hey Guys. I have a 95 swb xlt 4.9 m5od 2.73. I am looking at replacing the gears and installing a posi at the same time. My problem is I cant get the posi unit until I know what my spline count is. Is there any way of determining this without actually removing my cover? What years had 28 splines and what years had 31 splines? I am going with 3.08s to give a little better tow capacity and still retain mpg. I have a 6x10 trailer I tow every once in a while. Thanks.
 
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Old Feb 26, 2006 | 07:29 PM
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kennethl6
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From: Central Virginia
F series trucks with 8.8" rears have 31 spline axles and your carrier will have a 7/8" spider pin also.
 
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Old Feb 26, 2006 | 07:40 PM
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Machman
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From: Wildwood
Thanks for the quick response. Cool setup dvds. I will definately hit you up when I start this mission.
 
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