Drivetrain Clutch, Torque Converter, Transmission, Driveline, Axles, Rear Ends

Help with rear end gear size

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Old Mar 7, 2008 | 06:26 PM
  #1  
JMG97SS's Avatar
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From: Rockwell,NC
Help with rear end gear size

I bought my SS used and Im not sure if the gear has been changed yet. I planned on doing a 3.73 but in a way I think it might already have something. I dont know if this is enough info but at 70mph in 5th Im pulling 2500 rpms.
Old Mar 7, 2008 | 06:50 PM
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JakeRobb's Avatar
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From: Okemos, MI
Originally Posted by JMG97SS
I bought my SS used and Im not sure if the gear has been changed yet. I planned on doing a 3.73 but in a way I think it might already have something. I dont know if this is enough info but at 70mph in 5th Im pulling 2500 rpms.
Assuming that you have the stock SS tire size (275/40ZR17), your numbers indicate that you have stock 3.42:1 gears.
Old Mar 7, 2008 | 11:09 PM
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From: Rockwell,NC
Yep, stock tire size. Thanks for the help, I didnt want to waste the money if it already had something and the 3.42 pulls better then I figured it would.
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