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Thread: what gears ????
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11-14-2006, 08:36 PM #1
what gears ????
I was wondering what gears come stock on a 98 Trans Am, automatic, is it like the vettes, C5's, were auto's come in either 2.73 standard or 3.15 performance axle, and 6 speeds have the 3.42's, I was under the impression that TA's came with 3.23 or someting like that, thanks for you help, Ozzie
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11-15-2006, 03:34 AM #2
They came with 2.73 or 3.23. If you look at your rpo codes on the drivers door, the gear codes are I believe "AU". I think the code for 3.23 is AU4. If you do a search for "RPO codes on this forum you will find out all you need to know...
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11-15-2006, 08:52 AM #3
- Join Date
- Jul 2005
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Yeah, A4's came with either 2.73 (GU2) or 3.23 (GU5) performance axle option - M6's got 3.42 (GU6).
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11-16-2006, 08:13 AM #4
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11-16-2006, 09:43 AM #5
- Join Date
- Sep 2005
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- NE Indiana
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Black- 1998 Trans Am WS6 'Vert
And WS6/SS cars (and I'd imagine Hawks too) w/ A4 required the 3.23 rear as a "mandatory option".
Johnny B - '98 "Triple Black" WS6 Convert, M6, All Options, ASC #3030 (1 of 50)
KBDDSFC, DGM C/F Tonneau, MTI C/F Lid, K&N, HPP-III, 160 T-stat, Pro 5.0
Link to Firebird Production Breakdowns
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11-17-2006, 12:29 PM #6
Thanks guys, I just looked and it has the stupid 2.73, helps explain why the best time I could get was 13.9
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11-17-2006, 01:03 PM #7
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11-17-2006, 01:06 PM #8
- Join Date
- Nov 2006
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- Indianapolis
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Black- 2000 WS6 6spd Hooker LT
Yup. My 98 ran a best of 13.65 @ 102.95. Only had a lid. Usually ran 13.9-14.1 near 100 MPH. Made a .3 difference when I manually shifted the car just before 6200. It had the 2.73 gear also.
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11-17-2006, 05:13 PM #9
Do any of you know what it would cost, with install, parts and tune, to put in something like 3.42 gears, thanks Ozzie
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