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Old 11-18-2008, 09:24 PM   #1
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Identify Limited Slip / Posi Unit
Please help me ID this posi unit that I am considering buying. After IDing manufacturer, how, then, do I ID the series for Ring and Pinion compatibility?

Thanks for your time.
Matt
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Old 11-18-2008, 09:42 PM   #2
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Re: Identify Limited Slip / Posi Unit
wow, never seen a posi like that, Mostly they are either the throwought gov-loc posis or spring type auberns. That looks like a locker to me... any other input>
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Old 11-18-2008, 11:34 PM   #3
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Car: '86 Trans Am and '03 S-10
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Transmission: 700R4 and NV3500
Axle/Gears: 7.625/3.42 Auburn and 8.5/3.08 Gov-

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Re: Identify Limited Slip / Posi Unit
Any part numbers on it? Is it for 9-bolt or 10 bolt rear?
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Old 11-18-2008, 11:40 PM   #4
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Re: Identify Limited Slip / Posi Unit
I'll have to go by tomorrow to check it out. he said he picked it up for his 3rd Gen Z28 rear end, but then went 4th gen. I've only seen a few posi's in person, and none have looked like this.
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Old 11-19-2008, 11:38 AM   #5
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Car: '84 Trans Am WS6
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Axle/Gears: 7.5" 3.23:1, posi, swapping to 8.5"

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Re: Identify Limited Slip / Posi Unit
You might try contacting someplace like Reider Racing.
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Old 11-19-2008, 01:49 PM   #6
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Re: Identify Limited Slip / Posi Unit
That's a Borg Warner unit from a 9 bolt. Hard to tell if it is a 2 or 3 series by a picture, but it looks like a 3 series.
Last edited by big gear head; 11-19-2008 at 01:54 PM.
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Old 11-19-2008, 03:22 PM   #7
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Re: Identify Limited Slip / Posi Unit
OK. I see there is the same unit on this post:
http://www.thirdgen.org/techboard/ca...-rs-305-a.html (92 Camaro RS, 305 TBI, Auto, Bright Red, Immaculate!)

I would agree, it looks like a 3 series compared to the second post picture.

Please correct me if I'm wrong, a 3 series will accept 3.08 up to 3.7X.

From the info I am reading on the board, BW units are rare and parts are hard to come by.

Thanks for the help.
Matt
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Old 11-19-2008, 03:22 PM
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Reload this Page Identify Limited Slip / Posi Unit
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1985, 1986, axle, camaro, end, find, houston, identifying, limited, posi, rear, s10, slip, trans, tx
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