Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana
View Poll Results: What gears, if any, should I run?
3.73s
182
66.18%
4.10s
52
18.91%
4.56s
23
8.36%
Keep the stockers!
18
6.55%
Voters: 275. You may not vote on this poll

3.73, 4.10 or 4.56 in an A4 daily driver

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Old 06-21-2006, 12:52 AM
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Thanks for the advice! I'll hold off on the big gearing for later.
Old 06-21-2006, 01:16 AM
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3.73s all the way.
Old 06-24-2006, 02:28 PM
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Who in the hell voted for 4.56s I wonder? Looks like 10 smartass people trying to ruin my daily driver!! LOL
Old 07-03-2006, 12:12 PM
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I got 3.73's on mine just recently and my gas mileage has gone a bit low. any of you guys filled up to see how many miles you get on half a tank of gas??
Old 07-03-2006, 12:13 PM
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i got 24 mpg with my 4k stalled, 373 geared a4. untuned with headers, a 300lb passenger, and 75 lbs of luggage.

not bad. also on stock rims/tire size @ 80 mph (2,800 rpm).
Old 07-10-2006, 10:58 AM
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I voted 4.10's because it's what I put in my rear, but it really depends on what you really want. If you plan on running street tires, do NOT go for 4.10's... if you've got DR's, then do 4.10's, you won't regret it.
Old 07-10-2006, 03:34 PM
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how can i know what gears i have on my 99 TA
Old 07-10-2006, 03:58 PM
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Look on the inside of your door where the codes are at. GU2 is 2.73's, GU5 is 3.23's.
Old 07-10-2006, 05:26 PM
  #49  
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thanx
Old 07-12-2006, 05:22 PM
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3.73's man
Old 07-12-2006, 05:37 PM
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373 dude.

the t-rex will need a lot of RPM at the top end of the track with the 410s if you aren't running tall(er) tires.

also, should you choose to spray, you'll have that extra rpm to avoid OD.
Old 07-29-2006, 10:19 AM
  #52  
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You guys who say 3.73's are just pu$$ies!!!:p I realize this thread is a little old, so your decision may already be made, but I say 4.10's. 3.73's can break just as easy as 4.10's in the 10-bolt. Pretty much any gear can!

Just to let you know, I have had BOTH 3.73's AND 4.10's in my car, so I have experience on this issue. They are both a pretty "extreme" change from 2.73's (I mean, on the highway), but the difference between 3.73's / 4.10's really isn't all that much, and 4.10's will accelerate that much better. For 1/4 mile running, they run you across the line near the top of 3rd gear, and until you start running really fast (well over 110 mph) then as long as you can rev over 6000 RPM, and/or run 27" or 28" tires, then you'll have no problem hitting those speeds with the 4.10's. All I would recommend is that when you launch the car, stall it up a bit before leaving the line to pre-load the drivetrain ... this should help save the gears from the abusive shock as long as possible.

On the street, my car hooked surprisingly well ... no worse than it did with 2.73's in it! My average mileage stayed about the same (I do 50/50 city/highway, but half of my highway driving is stop-and-go ) and normally I get about ~230 miles to a tank of fuel (whatever that works out to be MPG wise ... ~18 - 20 I think?? ).

And FWIW, my 4.10's held up just fine until I took the car road racing. Unfortunately the shock of coming off the corners, pinning the throttle, and the transmission downshifting to 2nd gear over and over and over again was just too much for the gears ... 2 teeth sheared off the pinion . Otherwise, they held up fine for almost ~2 full seasons of daily driving and 1/4 mile running.
Old 07-31-2006, 12:42 AM
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And another one for 3.73s.
Old 08-24-2006, 04:36 PM
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Originally Posted by THE LAST Z
Everybody's different.
You need to go to this site and play around with the numbers:

www.f-body.org/gears
according to that site, A 98 M6 F-Body with a stock rearend will go 268MPH in 6th at 6000rpms.
Old 08-31-2006, 07:53 PM
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from what i hear 3.73's on an A4 is best
Old 09-05-2006, 11:23 PM
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Originally Posted by orion565
what about 3.42s??

If I had to do again
i would go with 3.73



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