LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What Gears are in my 96 Formula Stock Rear?

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Old Aug 7, 2005 | 02:49 PM
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Default What Gears are in my 96 Formula Stock Rear?

Couldnt find anywhere.......prob didnt look hard enough. But if someone could help me out with this I would appreciate it.
Thanks
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Old Aug 7, 2005 | 03:07 PM
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Looks like 2.73s for autos, 3.42s for manuals.

http://media.gmcanada.com/division/c...6Firebird.html

See under transmissions.

TRANSMISSIONS 5-speed manual 6-speed manual 4-speed electronic
w/overdrive w/overdrive automatic w/overdrive
Gear Ratios 1st 3.75 2.64 2.92
2nd 2.19 1.78 1.57
3rd 1.41 1.30 1.00
4th 1.00 1.00 0.71
5th 0.72 0.74 ----
6th ---- 0.49 ----
Reverse 3.53 2.42 2.39
Final Drive Ratio 3.23 (3.8L V6) 3.42 (5.7L V8) 3.08 (3.8L V6)
2.73 (5.7L V8)

Last edited by futurefbodyownr; Aug 7, 2005 at 03:13 PM.
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Old Aug 7, 2005 | 03:16 PM
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hey man.........what a great guy you are
thanks
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Old Aug 7, 2005 | 04:14 PM
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Sure np.

Also does anyone knows where that spec page for 94 is?

I can only find back to 96 on that site here: http://media.gmcanada.com:8221/divis.../archives.html
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Old Aug 7, 2005 | 05:24 PM
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check your RPO codes in your glove box, or they might be on the inside of the door...
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Old Aug 8, 2005 | 07:58 PM
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if it is an auto, it could be either 3.23s or 2.73s. If your shifter has 1-D then it is 3.23s, but if it is 2-D, it has 2.73s.
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Old Aug 8, 2005 | 08:02 PM
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From the rpo codes (if no one else has already messed with it):

GU2 = 2.73
GU4 = 3.08(V6 autos)
GU5 = 3.23
GU6 = 3.42(V8 manuals
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Old Aug 8, 2005 | 08:13 PM
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Originally Posted by resurrectedz28
From the rpo codes (if no one else has already messed with it):

GU2 = 2.73
GU4 = 3.08(V6 autos)
GU5 = 3.23
GU6 = 3.42(V8 manuals

bingo
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