Gear ratio question
Thread Starter
Instructor
Joined: Sep 2006
Posts: 143
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From: O'Fallon Missouri
Gear ratio question
I'm trying to figure out the gear ration in my 02' A4 coupe. It's got stock wheels on it with the factory tire sizes, and on the highway in O/D, I'm cruising at 1700 at 70mph. Any help in figuring this out is greatly appreciated. 
Le Mans Master
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From: CA.
St. Jude Donor '13-'14-'15
Should on a metal tag connected to one of the rear housing bolts--also i've seem some that are etched into the rear end too---i would guess that with 1700 @ 70 MPH you have 2.73's which are stock--The 3.15 gears wear an option --called the "sport gears"---3.42's were not availiable stock on an A4-------
Melting Slicks
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From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Le Mans Master
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Team Owner
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From: Kannapolis NC
Or you could look at the code on the glove box door. GU2 is 2:73, G90 is 3:15, G92 is 3:15 "performance axle"
If you put your car in '3", not 'd', and drive 75 mph, you get your ratio. Example: 2173 rpm (appr) is 2:73, 3150 rpm you have 3:15, etc.
If you put your car in '3", not 'd', and drive 75 mph, you get your ratio. Example: 2173 rpm (appr) is 2:73, 3150 rpm you have 3:15, etc.
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