taws6

iTrader: (2)

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......

drummydummy

iTrader: (1)

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.

taws6

iTrader: (2)

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.......

JScamaro

iTrader: (6)

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.

taws6

iTrader: (2)

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?

Pseudonym

iTrader: (3)

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.

taws6

iTrader: (2)

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.

Pseudonym

iTrader: (3)

Glad you didn't take my comment the wrong way. I think you will find the swap to be worth it.

01ssreda4

iTrader: (96)

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.

taws6

iTrader: (2)

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??

30th t/a

iTrader: (51)

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.

01ssreda4

iTrader: (96)

my 106K tranny is living fine behind my stall.

taws6

iTrader: (2)

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.

JScamaro

iTrader: (6)

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.

01ssreda4

iTrader: (96)

yes my trans is stock and lots of people on this site run stalls on factory 4l60s with no problems.

Derek@BPP

If you are wanting to stay budget minded...get the gears...or spend a lil more and get the convertor...

taws6

iTrader: (2)

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.........