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

1987 IROC 5.7 Trans Question

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Old Aug 28, 2013 | 11:32 AM
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From: Rhinelander, WI
Car: 89 Formula
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt 3.27
1987 IROC 5.7 Trans Question

Is there anything I should know about the 1987 IROC with 350 cars as everyone I have test driven shifts hard/firm. Did they do something different than what the 700R4 add in Formulas and GTA Trans Ams? Just curious if GM gave them a more better or beefed up trans.
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Old Aug 29, 2013 | 12:42 PM
  #2  
JP007's Avatar
Thread Starter
Junior Member
iTrader: (3)
 
Joined: Jan 2007
Posts: 94
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From: Rhinelander, WI
Car: 89 Formula
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt 3.27
Re: 1987 IROC 5.7 Trans Question

Did GM ever put Corvette transmissions in the IROC Z 350 cars?
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