Jmac29

I was wondering if i got the 97 z28, i would want to put aftermarket gears on it, its an A4 i was just wondering wat the best setup would be?

BlazerINtheWork

iTrader: (7)

3:42-3:73 are nice and fine for daily use even on the highway.

chevy94c

3.42 or 3.73

Speed Density

iTrader: (38)

4.10s

SSweet97

iTrader: (7)

3.73's

95formulalt1

iTrader: (13)

i hav 3.43 and i like them

NOTAV6

iTrader: (3)

i had 3.73s in my car when it was auto its prolly the best you can do if you dont want gas mileage to go down the ******* that and 3rd gear tops out right at 100 mph or at least mine did

Speed Density

iTrader: (38)

My MPG went down maybe 1 with the swap of 3.23 to 4.10s. Its all about how you drive. Spinning 3k at 75 on the interstate.

my94blackz

3.42's

blind527

iTrader: (8)

4.10's are fine in an auto for highway MPG. As stated, it matters how you drive it. Some people think 4.10's kill the 10 bolt, and give terrible gas mileage, but it just depends on how you drive it.

I don't care about top speed, honestly.

Renegade

iTrader: (1)

I would also recommend 3.42 or 3.73 gears. If your car isn't going to see the strip much, you'll probably be better off with 3.42's due to how well mannered they are. 3.73's will see better gains in the 1/4, but will hurt gas mileage a little more than 3.42's. I wouldn't recommend 4.10's unless you plan on turning it into an allout drag car.

Speed Density

iTrader: (38)

Well my car is a DD, and ive got 4.10s and love it. Its all about how you drive and your prefernce of noise.

Hark_Z

iTrader: (12)

My 3.73's give me horrible gas mileage, I could not even imagine 4.10's.. I love the performance though.

urbanhunter44

iTrader: (1)

I had 4.10s in my '94 T/A, automatic. Spun 2500 at 65mph. Didn't really affect gas mileage. I'd get them again.

I plan on going higher in my new 6-speed.

FoRmuLa_DriVa

iTrader: (1)

3.73's...I wouldnt go any higher

beeker82

im going with 3.73s in my car

infinitebird

iTrader: (11)

As said, depends on your driving habits. If you never go higher than 65, they are not that bad. On the other hand if you go 85, it will be turning around 3200 and gas mileage will be a lot worse.

donkey mule

Get the 3.73's! I've got 3.73's on my 95 a4 TA. I was contemplating getting 3.42's and am much happier that I got the 3.73's. My gas mileage actually improved about 1 to 2 mpg over the 2.73's it had in it. Most of my driving is city and occasional highway. If I would have went 3.42's I think I would not have been as happy about the change.

urbanhunter44

iTrader: (1)

Yeah, but the speed limit is 65 or 70 in most states

Plus LT1s get much better gas mileage at 65 than they do at 85 no matter what your gearing is. I'm actually really enjoying the 3.42s in my M6, nice to cruise at 65 at 1600 RPM. But the 4.10s will come very shortly - if I don't go with a shorter gear that is.

infinitebird

iTrader: (11)

Yes but not really in some cities.