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Reload this Page gas between 2:73 to 3:73 posi

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

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Old 05-27-2008, 09:21 AM   #1
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Join Date: Feb 2008
Location: Waynesville ohio
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Car: 1990 Camaro RS
Engine: 305 tbi
Transmission: 700r4 Shift kit w/ vette servo
Axle/Gears: 3:73 posi

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gas between 2:73 to 3:73 posi
Ok right now i have the 2:73 and i never am on the highway. I am going to put 3:73 posi in it and woundering what my mpg will do?
thanks
kevin
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Old 05-27-2008, 02:07 PM   #2
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Join Date: Oct 2006
Location: ludlow mass
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Car: 02 Mustang
Engine: 3.8 about to be punched out to 4.3
Transmission: 4R70W
Axle/Gears: 3.73 Detroit true trac

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Re: gas between 2:73 to 3:73 posi
it wont go down to much, my old 92 used to do 20s on the highway even with 3.73s
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Old 05-27-2008, 09:30 PM   #3
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Join Date: Aug 2004
Location: Marietta, GA
Posts: 4,111
Car: '91 Firebird Convertible
Engine: 305 TBI (LO3)
Transmission: 700r4, Vette Servo
Axle/Gears: 3.27 9 Bolt, PBR disks

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Re: gas between 2:73 to 3:73 posi
Quote:
Originally Posted by abyliks View Post
it wont go down to much, my old 92 used to do 20s on the highway even with 3.73s
I bet it goes down 30%.
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Reload this Page gas between 2:73 to 3:73 posi
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