Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Which posi is this?

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Old Jan 19, 2003 | 12:40 PM
  #1  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Which posi is this?

I'm interested in buying a posi out of a '91 Z28. I know it's a 28 spline clutch type, but who made it? Anyone got a link for the info?

Thanks..

Ed
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Old Jan 19, 2003 | 12:48 PM
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Eightyninef's Avatar
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91's prolly had the 10bolt. which you can go with a SLP unit..
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Old Jan 19, 2003 | 01:12 PM
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ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Yeah, I know it's a 10 bolt, but who made the thing? Eaton, Auburn?

I'm still leaning VERY heavily toward the SLP unit but I was waiting until I got my money back from the USPS for losing my last SLP posi somewhere in Jersey. I may get a deal that I won't pass up.

Ed
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Old Jan 19, 2003 | 03:43 PM
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MdFormula350's Avatar
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From: Maryland; USA
https://www.thirdgen.org/techbb2/sho...olt+posi+eaton

https://www.thirdgen.org/techbb2/sho...olt+posi+eaton
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Old Jan 19, 2003 | 05:58 PM
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RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
If it has the 2 little weights that look like a governor, it's an Eaton. If it has 4 big springs and not much else, it's an Auburn.

Most of these cars (I would say "all", but you know how that is) got the Auburn. I'd suspect that's what it is.
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Old Jan 20, 2003 | 04:04 PM
  #6  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Thanks guys, that'll do it.

Ed
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