99 Vert Axle Options
Always Shiftin'
Joined: Jun 2000
Posts: 4,028
Likes: 939
From: Central Florida
2025 C7 of the Year Finalist - Modified
2024 C7 of the Year Finalist - Modified
2023 C7 of the Year Finalist - Unmodified
2019 C5 of Year Finalist (stock)
I am assuming that your '99 is a 6 speed. The 3.42 rear gear ratio was standard for the 6 speed. I don't think you had any other option with the manual transmission. The automatic had a std 2.73 and I think could be upgraded to a 3.15(?).
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
All 6spd cars were 3.42, no optional ratios.
Automatic cars came standard with 2.73. 3.15 was optional.
Simply put, the higher the numerical ratio, the faster the car will accelerate, and it will be running at a higher rpm in any given gear at the same speed.
Aftermarket ratios offered are 3.73, 3.90, and 4.10 for those wishing even more. The 3.42 ratio is also a popular upgrade for A4 owners.
Automatic cars came standard with 2.73. 3.15 was optional.
Simply put, the higher the numerical ratio, the faster the car will accelerate, and it will be running at a higher rpm in any given gear at the same speed.
Aftermarket ratios offered are 3.73, 3.90, and 4.10 for those wishing even more. The 3.42 ratio is also a popular upgrade for A4 owners.
