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Old 08-23-2010, 06:58 PM
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Grand National Rear End

Hey Hotrodders im about to buy a grand national rear end and i would like to know how can i tell the difference? Plz help

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Old 08-23-2010, 07:52 PM
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The GN had the 8.5 10 bolt. As far as I know they all had the Traction Lock differnetial and 3.42 gears. They all had 28 spline axles. I think they also had the odd shaped housing ends with the three bolts holding the backing plates on instead of 4 bolts like the older 8.5 rear ends. It will be about 58 inches wide. All of the other 8.5 rear ends will be much wider than this.
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Old 08-23-2010, 10:41 PM
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7.5" to 8.5" Diff ID

7.5" to 8.5" Diff ID>> http://dyeager535.topcities.com/diffid.html
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Old 08-31-2010, 10:34 PM
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Differential

How can I tell a grand national rear end.?
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Old 08-31-2010, 10:56 PM
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Mcss86... I merged your new thread with your old thread since you ask the same question again
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Old 08-31-2010, 11:18 PM
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Quote:
Originally Posted by McSS86
How can I tell a grand national rear end.?
The code on the axle tube will indicate if it's from a GN, T-Type etc..
http://www.gnttype.org/numbers/axcodes.html
Code location>> http://tech.oldsgmail.com/axle_useage.php
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