Gear Ratio
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Safety Car
Joined: Jan 2009
Posts: 3,757
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From: Charlotte NC
No need for that 
. All the car codes are listed in the glove box. GU2 for 2.73, G90 for 3.15. That's if you have an auto, if it's a 6 speed they all came with 3.42s code GU6.
http://www.corvetteactioncenter.com/.../2000rpos.html
. All the car codes are listed in the glove box. GU2 for 2.73, G90 for 3.15. That's if you have an auto, if it's a 6 speed they all came with 3.42s code GU6.http://www.corvetteactioncenter.com/.../2000rpos.html
Team Owner
Joined: Jan 2002
Posts: 23,234
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From: All that glitters is Gold - Hockey Is CANADA'S game
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '05-'06
Check your glove box or the rear compartment lids for the option codes list
Or...if you have an A4, place your A4 into third gear and get on the highway. At a constant 75mph (making sure the TC has locked) read the rpm value; then divide it by 1000.(This also works with the six speed manual transmission using 4th gear):
examples:
2730 RPM........ you have a 2.73
3150 RPM........ you have a 3.15
3420 RPM........ you have a 3.42 (not a factory available ratio with the A4)
3730 RPM........ you have a 3.73 (not a factory available ratio)
3900 RPM........ you have a 3.90 (not a factory available ratio)
4100 RPM........ you have a 4.10 (not a factory available ratio)
(assuming rear tire height has not been altered from the factory height. Typical factory tire heigth on the C5 is 26.2 inches)
Team Owner
Joined: Jan 2002
Posts: 23,234
Likes: 4
From: All that glitters is Gold - Hockey Is CANADA'S game
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '05-'06
Team Owner
Joined: Apr 2001
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From: S.W. Ohio. . . . . . NRA Life Member
