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rear end gear ratio???

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Old Nov 15, 2004 | 08:43 PM
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Default rear end gear ratio???

actually i feel kinda stupid for not knowing this as i used to know darn well what it is from the Tremec install i did...

but being an old, burned out hippie, i have forgotten...
what would the rear gear ratio be in my 79 L82? ??
were they all the same???
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Old Nov 15, 2004 | 08:51 PM
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From: eville in
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i don't know Hey hippie
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Old Nov 15, 2004 | 09:01 PM
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How do you forget something like this?
I always thought the standard for 4 speed L82 in 79 was a 3.70 rear.
If yo uare running around 2200 at 70 it is a 3.70 rear. That is what my 3.70 with the Tremec runs.

Last edited by Gordonm; Nov 15, 2004 at 09:03 PM.
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Old Nov 15, 2004 | 09:02 PM
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According to the books that I have if your car is an automatic , factory rear gearing is 3.55. If it is a manual transmission it would have come with a 3.36.
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Old Nov 15, 2004 | 09:04 PM
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Originally Posted by Gordonm
How do you forget something like this?
"of all the things ive lost, i miss my mind the most..."
since the sixties...
i forgot my best friend's name the other day!
i remembered it 2 minutes later tho...
and thats no lie!
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Old Nov 15, 2004 | 09:04 PM
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According to the data I have 79 vettes all had positraction and came in the following ratios.
3.36
3.55
3.70
Hope this helps.
Took the info out of How To Restore and Modify Your Corvette By Richard Newton.
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Old Nov 15, 2004 | 09:09 PM
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Originally Posted by Eddie 70
According to the data I have 79 vettes all had positraction and came in the following ratios.
3.36
3.55
3.70
Hope this helps.
Took the info out of How To Restore and Modify Your Corvette By Richard Newton.
how do i know for sure what mine has?
turn the wheels and count the drive shaft revolutions?
is it recorded anywhere on the car? vin # etc?
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Old Nov 15, 2004 | 10:58 PM
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3:73 is a great ratio and what I installed in place of the stock 3:08
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Default Gearing

, So what ratio would a 1973, 350, L48, 4 spd, W/Air...LOL
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