I am going to be driving this car on the street mostly and sometimes the track.. i was thinking 4.11's but i think i would lose to much off the top end. then i was thinking 3.73's or maybe lower any help would be appreciated

 

3.73 for an A4. JMHO

 

I wouldn't want 4.10's on the street. When my car was an A4 I would be doing about 2500 RPM at 70 mph with 3.73's.

 

any freeway driving you will want 373

 

Research which brand before you buy. Go with spacers instead of crush sleaves. JMHO

I have OEM 410s on my M6. Runs around 2100 RPM at 70 in 6th.

 

I have a moser 12 bolt with 3.73s in my A4....seems to be nice. I wouldnt go higher on a A4 unless u strickly track it bc doing freeway speeds around 110-120 KPH it sits around 2800RPM.

Jay

 

i have a strange 12 bolt with 342 and love it... went there for the mileage and going into od on the spray in the 1/4....very happy with my choice... 23 mpg highway and still in the low 12 high area

 

This thread is just begging for pics, butt I'll keep it work safe for all.....much as it hurts me to do so.

 

I've been running 4:10 for 12yrs in my A4 and yes I also had 3:73 until I broke them and i couldn't wait to break them to get back to my 4:10's. I only drive it when I want to play but even on a trip with overdrive it was ok. The OD makes 4:10's easy to deal with and with a good set of drag radials, look out. That is all it takes for a street race to be to your advantage. On the street chances of running the full 1/4 are slim, but the next red light with you hookin and them not is in your favor. The seat of your pants launch is worth it. If your makin a ton of power you probally don't need them, your set up is a factor, but with bolt on's, it's a good combo.That's my $0.02

 

If it's bothering you that much, just send them my way.
And to the OP, just go with the 3.73s.

 

With a 26 inch tall tire, 3.73 or 3.42

28 inch tall tire 4.10


Be careful the 4.10 in the stock rear break pretty easy, the pinion is SMALL!


David