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Are gears worth it for me?

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Old Jun 27, 2009 | 05:34 PM
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Default Are gears worth it for me?

Hi,

I hope you can advise me.
Please check my sig for my intended mods.

I really don't want to kill my stock (A4) tranny and 10 bolt.

I am not really into drag racing, I am more into roll racing, and I would like to get from 30 mph to 90 mph quicker.
I have an A4 WS6 (So I think I have 3.23:1 gears).

Are my gears worth swapping for my aims, and if so, which ones should I get?

Would swapping gears put my trans or rear end at risk?

Thanks for the help......
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Old Jun 27, 2009 | 06:00 PM
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I believe 3.42's or 3.73's are your only options.

I would hate to go to all the trouble of swapping the gears only going from a 3.23 to a 3.42. I just finished puttin 4.10's in my M6 today and what a WORLD of difference. It gets up the RPM band quick now.

I would say get the 3.73's and make sure you get a install kit with all new seals and bearings. Saves a lot of trouble and the peace of mind that everything is getting replaced with new parts.

If everything is set up correctly, there should not be any more stress on the rear end. It's more so the intial torque hit that weakens the rear end. Like dumping the clutch on your H/C M6 from 5,000RPM. THAT will put some stress on the rear end.
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Old Jun 27, 2009 | 06:10 PM
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Hi,

Thanks for your reply.
Sounds very interesting.

Can anyone with an A4 who's done the 3.73's swap, confirm it would be the kind of upgrade I'm looking for ??

Thanks for the help.......
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Old Jun 27, 2009 | 10:11 PM
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I wouldn't do gears unless you are replacing your rear end or get a bigger cam. I would into an aftermarket torque converter first if you are looking to go faster.
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Old Jun 28, 2009 | 05:17 AM
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I've looked into swapping the TC, but the advise I keep getting is it will probably takeout my tranny. And I really don't want spend that much money just on rebuilding my tranny.
If I could do a stall and it not kill my tranny I would be more tempted, but I don't want to spend too much on my car, and I would like it a little faster than stock.(I could easy spend $20k on H/C, TC, SC, DP N2O, rear, tranny etc etc....)

My planned mods are within my budget

Question is, will 3.73's make me a little faster in the 30-90 mph range?
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Old Jun 28, 2009 | 08:11 AM
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Question is, will 3.73's make me a little faster in the 30-90 mph range?
Nope, you'll still be going between 30 and 90 mph, but you'll accelerate faster. I would go with 3.73s if I were you. Sorry if I sounded like a jackass, just thought your wording was funny.

Last edited by Pseudonym; Jun 28, 2009 at 08:19 AM.
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Old Jun 28, 2009 | 08:20 AM
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Nope, you'll still be going between 30 and 90 mph
Yea, you know what I mean lol. As long as I get to 90mph quicker with 3.73 gears than my current 3.23 gears, it will be worth the swap for me.
That's what I wanted to hear, thanks for the advise.

Paul.
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Old Jun 28, 2009 | 08:38 AM
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Glad you didn't take my comment the wrong way. I think you will find the swap to be worth it.
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Old Jun 28, 2009 | 10:49 AM
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A stall is a hell of a lot better option for you since you already have 3.23s. Going from 3.23s to 3.73s is not that big of a deal, on the other hand a Yank 3600-4000 stall is night and day difference. A stall to me is even better then a cam in an auto. Get a cooler and watch tranny temps and everything will live a long and happy life.
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Old Jun 28, 2009 | 11:37 AM
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The advise I keep getting about a stall is it will probably takeout my tranny. I really don't want spend that much money just on rebuilding my tranny.
If I could do a stall and garantee it will not kill my tranny I would be getting a TC instead of RR, pulley and gears.

No problem Pseudonym, I am thankfull you guys are helping me decide.

I know 4.10's are a bad idea for an A4, are 3.90 gears okay for my A4, to make them more worth swapping? And would they be better for me than the 3.73s??

Last edited by taws6; Jun 28, 2009 at 11:44 AM.
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Old Jun 28, 2009 | 12:06 PM
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Get the 3.73s!
I went from 3.42's to 4.10s in my 6 speed and WOW...HUGE difference.
So going from 3.23s to 3.73's would be pretty damn similar to what I did.

Dont worry about the 10 bolt. I got over 50 passes on my stock 10 bolt with NO issues.
You just got to know how to baby it out of the hole.
Plus you stated that your more into roll racing anyways........I wouldnt worry about the rear.
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Old Jun 28, 2009 | 02:39 PM
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my 106K tranny is living fine behind my stall.
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Old Jun 28, 2009 | 03:09 PM
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Is your tranny stock, and is yours an exception, or is the general rule that the stock tranny can handel a stall?
I am under the impression that a TC will generally break the crap 4l60 tranny.
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Old Jun 28, 2009 | 03:32 PM
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I daily drove my Yank SS3600 on the stock 4L60E for a couple thousand miles with no issues. I also had a big transmission cooler to keep the temperatures in check.
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Old Jun 28, 2009 | 10:53 PM
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yes my trans is stock and lots of people on this site run stalls on factory 4l60s with no problems.
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Old Jun 28, 2009 | 11:05 PM
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If you are wanting to stay budget minded...get the gears...or spend a lil more and get the convertor...
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Old Jun 29, 2009 | 03:27 AM
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yes my trans is stock and lots of people on this site run stalls on factory 4l60s with no problems.
Hmm, I thought the stock tranny is likely to break with a TC.

It's not the cost of a stall that is putting me off somewhat, it's more the additional cost if it takes out my tranny that I worriey about.
I hear our stock tranny can take gears without a problem, hence why I'm considering gears instead of a stall......Although if I see enough evidence to say our 4l60 can cope with a TC, I may be tempted outherwise.........
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