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

rear gear

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Old Aug 2, 2008 | 12:42 PM
  #1  
fbirdroller's Avatar
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Joined: Oct 2006
Posts: 105
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From: cleveland, ohio
Car: 1986 camaro z28
Engine: vortec 5.7
Transmission: 700r4
Axle/Gears: 2.73
rear gear

i have an 86 z28 auto. it has a 2.73 rear and i am wondering if it is a posi or open?
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Old Aug 2, 2008 | 02:27 PM
  #2  
DJP87Z28's Avatar
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Joined: Mar 2003
Posts: 4,771
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: rear gear

Originally Posted by fbirdroller
i have an 86 z28 auto. it has a 2.73 rear and i am wondering if it is a posi or open?
I woulde guess it is one or the other...
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Old Aug 2, 2008 | 02:41 PM
  #3  
AlkyIROC's Avatar
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: rear gear

Is the RPO list still in the center console? Look for G80 but even then that doesn't mean someone may have changed the diff since the car was new.
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