3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Is a 11.50 rear end a 3.73

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Old Nov 13, 2007 | 04:38 PM
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From: Ft Lauderdale FL
Is a 11.50 rear end a 3.73

My build sheet says I have an 11.50 rear end is that a 3.73 ? Thanks
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Old Nov 13, 2007 | 04:40 PM
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Unless it specifically says 4.10s it should be 3.73.
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Old Nov 13, 2007 | 04:41 PM
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From: conroe tx
3.73 or 4.10
edit; pauly beat me to it
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Old Nov 13, 2007 | 04:47 PM
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How can I tell ?
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Old Nov 13, 2007 | 04:50 PM
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From: conroe tx
look in the glovebox,look for tag on axle,or jack it up and spin driveshaft 1 rev and count the tirespin
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Old Nov 13, 2007 | 04:52 PM
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Thanks for the quick answers! Im going outside right now
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Old Nov 13, 2007 | 05:03 PM
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Nothing in the glove box or the axle.
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Old Nov 13, 2007 | 06:12 PM
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Call your local dealer and have them run the VIN.
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Old Nov 13, 2007 | 10:58 PM
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I know the 06 did not have a label in the glove box like my 04.5 did. If it was not on the Window Sticker as 4:10 then it is 3:73. 4:10 was an option and would be on the Window Sticker.
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Old Nov 14, 2007 | 07:34 AM
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The window sticker has "11.50 rear end"
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Old Nov 14, 2007 | 09:39 AM
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If it doesn't specifically say 4.10s on the window sticker you have 3.73s.
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Old Nov 14, 2007 | 09:55 AM
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Yeap, go to the parts department at the dealership and have them pull a build sheet for your truck.
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