I had a 2003 AT5
now i try to change Final Drive Gear Ratio
what you guys offer me .......
one more this gear ratio is base on TT set up

1> EVO 3.9
or
2> STD Trans. 3.5

PLS give me some your advice

 

Anyone? A little help please.

 

I have the 3.9fd and love it... but with stock motor. It depends on what type of driving you mostly do. If this is a pure track car, you may want to buy both 3.5 and 3.9 and switch according to the track.

For street with twin turbo the stock or 3.5 gearing should be plenty, but I am not sure how far apart the stock gears are... 3.9 might be better for bring gears "closer" but you will lose some top speed and fuel efficiency on fwy.

 

Thang-Q ,,,,, Thank's

 

for the 3.9 FD, dont you need the r&p from the 6mt?

 

When you purchase the 3.9 final drive the ring and pinion is what you get (along with new ring gear bolts and a shim). Not sure if you need anything else to install into AT rear end... I believe 350EVO can answer that.

www.350EVO.com