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Old 12-08-2010, 11:30 AM
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Tahoe rear end in a hot rod application

I recently heard about a builder using rear-ends out of late model Chevy Tahoes in high horsepower hot rod applications. Does anyone know any specifics on what year models, 5 vs. 6 lug, etc. Obviously I have very little information on this and am hoping someone knows more about the strenght and potential of these rear ends. Thanks.

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Old 12-08-2010, 11:41 AM
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The '99 and later Tahoe has the 8.6 10 bolt rear end. This rear end is very close to the same size as the 12 bolt car rear end. The pinion diameter is the same, the pinion bearings are the same, the differential bearings are the same, the axle splines are the same but the ring gear is 1/4 inch smaller. That is about the only difference. These rear ends are pretty strong like they are. The only upgrade that they really need is in the differetnial. These come with the Governor Lock differential, so an upgrade to the Eaton Posi is about all they need.

If he is using the 9.5 14 bolt then that is even stronger. This rear end is larger in every way than the 12 bolt. It even has 33 spline axles. Eaton also makes a Posi for this one, which is required because the 9.5 also comes with the Governor Lock.
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Old 12-08-2010, 12:26 PM
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not all 14 bolt 9.5's are governer lock.. the 1 I got out of a '96 1500 HD is a 3.42 open carrier
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Old 12-08-2010, 04:36 PM
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Yea, I know, but all of them with the limited slip differential had the Gov Lock.
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Old 12-08-2010, 04:43 PM
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that's true... is there a power traxx for the 14 bolt?
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Old 12-08-2010, 04:48 PM
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I don't think I've ever checked on a Power Trax for the 9.5.
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Old 12-08-2010, 06:02 PM
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Part# 1950.
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Old 12-08-2010, 06:32 PM
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Thanks for the information. Sounds like either way I go, I should end up with a rear end strong enough for a warmed up 425 Nailhead in my Henry J gasser. I appreciate the info.
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Old 12-08-2010, 06:48 PM
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What would really be cool in that old gasser is a '57 to '64 Olds or Pontiac rear end.
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Old 12-08-2010, 07:58 PM
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Gotta cheap one hangin' around you want to get rid of? I do think that would be cool...everything else on the car is period correct, but I didn;t think the rear end would show enough to matter. Maybe I am off base on that - really I am just looking for a good junkyard rearend to use that won't break the bank. I do like the way you think though...
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Old 12-08-2010, 08:15 PM
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See if any of these guys have one. http://www.trifive.com/forums/forumdisplay.php?f=52
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