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Thread: Gears
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04-09-2008, 03:08 PM #1
Gears
Where Do I Find Out What Kind Of Gears I Have In My Car I Have A 99 T/a
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04-09-2008, 05:33 PM #2
RPO codes
GU2 Axle Ratio 2.73, Rear
GU4 Axle Ratio 3.08, Rear
GU5 Axle Ratio 3.23, Rear
GU6 Axle Ratio 3.42, Rear
It says that is for 2001 but I would think that it would be the same.
http://www.bowlingss.com/RPO%20Code%20List.htm
http://www.ls1.com/forums/showthread.php?t=16147
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04-09-2008, 05:34 PM #3
- Join Date
- Feb 2006
- Location
- Chicago
- Posts
- 18
- 1999 Z28
Look for the RPO code on the inside of the driver's door.
GU2 2.73 Rear Axle
GU5 3.23 Rear Axle
GU6 3.42 Rear Axle
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04-09-2008, 06:08 PM #4
If you cant figure that out, jack the rear of the car up, put it in nuetral, make a mark on the drive shaft, and then on the tire have someone spin the tire one whole revolution while you are under the car and count how many times the drive shaft turns.
example, tire turns 1 revolution and the driveshaft turned about 3 and a 1/2 turns
your ratio would be a 3.42 etc. the code on the door is easiest, as long as the gears are stock.
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04-09-2008, 06:19 PM #5
- Join Date
- Mar 2008
- Location
- Pittsburgh
- Posts
- 78
Black- 2001 Camaro Z28
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04-10-2008, 12:27 PM #6
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04-10-2008, 12:32 PM #7
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04-13-2008, 12:13 PM #8
If your car is a six speed, all six speeds got 3:42s.
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04-17-2008, 11:59 AM #9
Need a set of 323's? Just swapped mine for 373. Shifts to quick now, I thought it would let RPMs climb more in lower gears for auto. Highway RPMs are higher, sucks. I wish I kept 323 and got a tune instead. WOT is cool though.
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04-17-2008, 12:02 PM #10
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04-17-2008, 02:58 PM #11
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04-17-2008, 04:24 PM #12
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04-17-2008, 05:20 PM #13
- Join Date
- Jul 2007
- Location
- Augusta, Georgia
- Age
- 55
- Posts
- 280
Bright Red- 99 Z28 M6, 03 Gixxer 1000
Are those codes good for a 99 Camaro M6 also?
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04-17-2008, 05:37 PM #14
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