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

rear end question

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Old Apr 29, 2007 | 01:33 PM
  #1  
TPI TERR's Avatar
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
rear end question

whats the gear ratio on a 2001 trans am non ws6 model .. with a t56
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Old Apr 29, 2007 | 07:05 PM
  #2  
vincode8's Avatar
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From: Long Island, NY
Car: 84 Z28
Engine: L69HO
Transmission: T-5
Axle/Gears: 3:73
Re: rear end question

Check the RPO sticker. The info is there. its the "GU?" code...GU2 -GU5 will cover the 2.73-3.42 gears to get the idea, not sure of the exact ones , but look it up in the RPO Decoder here on the home page once you check the sticker.
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Old Apr 29, 2007 | 07:22 PM
  #3  
Zepher's Avatar
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Re: rear end question

3.42 is stock on all 94-02 T56 equipped cars.
93 had 2.73 and 3.23 options for the T56, and there were 2 T56 models for that year based on which rear was installed.
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