'05 c6 4 speed auto question

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Apr 14, 2008 | 11:27 AM

lil red vette

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Joined: Sep 2007

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From: Bryant Ar.

'05 c6 4 speed auto question

Am considering buying a '05 with the 4 speed auto trans. Was wondering if there were any problems with that trans. Would like some owner's feed back.

Apr 14, 2008 | 12:23 PM

dennis50nj

Race Director

Joined: Mar 2005

Posts: 11,549

Likes: 27

From: Southampton NJ

it seems to be fine their was a tsb about mis machined case

Apr 14, 2008 | 12:34 PM

Ponchorello

Racer

Joined: Sep 2005

Posts: 489

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From: Houston

I have no problems with mine however you may want to stay away from the track with the A4. The differential case is one weak motha!

Dennis, didnt you get Cartek to swap out for the C5 case?

Apr 14, 2008 | 12:46 PM

dennis50nj

Race Director

Joined: Mar 2005

Posts: 11,549

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From: Southampton NJ

Quote:

Originally Posted by Ponchorello

I have no problems with mine however you may want to stay away from the track with the A4. The differential case is one weak motha!

Dennis, didnt you get Cartek to swap out for the C5 case?

hi Ponch, nope i still got the stock case, all i got was the 373 and the 1 hardened output shaft. so far i been lucky, and hope it stays that way

Apr 14, 2008 | 01:18 PM

LS1LT1

Team Owner

Joined: Feb 2001

Posts: 27,254

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From: Short Hills, NJ

Quote:

Originally Posted by Ponchorello

I have no problems with mine however you may want to stay away from the track with the A4. The differential case is one weak motha!

This is true but fortunately the automatics tend to live a lot longer/better than the manuals.

Apr 14, 2008 | 02:53 PM

ByByBMW

Le Mans Master

Joined: Dec 2004

Posts: 5,759

Likes: 539

From: AZ

St. Jude Donor '06-'08-'10-'11-'12-'13 '14-'15-'16-'17-'18-'19

I have had no issues with my A4. While I don't abuse it I have had it to the track twice with no issues. Wheel hop seems to be the biggest problem and that usually with the manuals, at least that is what I have read.

Apr 14, 2008 | 05:06 PM

Tire Guy

Racer

Joined: May 2006

Posts: 490

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From: Macon Georgia

St. Jude Donor '08

40k miles and no problems on my A4...

The Tire Guy

Apr 14, 2008 | 05:41 PM

Vette_DD

Team Owner

Joined: May 2004

Posts: 82,175

Likes: 1,319

From: McKinney TX

St. Jude Donor '21-'22-'23-'24

Had a problem with getting the shifter out of park when sitting on level ground with my 05. Dealer eventually replaced the shifter.

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Apr 14, 2008 | 07:46 PM

Vetteinplano

Burning Brakes

Joined: Nov 2005

Posts: 993

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From: Plano TX

36K and no problems with my A4/3.15

Apr 15, 2008 | 12:19 AM

#10

jmess

Pro

Joined: Nov 2004

Posts: 608

Likes: 1

From: Oregon

Track days aren't your friend with the A4. There is no rev matching when down shifting which can get really annoying and isn't the best for the rear diff either.

Apr 15, 2008 | 01:11 AM

#11

Tommy D

Le Mans Master

Joined: Aug 2004

Posts: 5,259

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From: Monroe Township New Jersey

St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16

St. Jude donor in memory of jpee '14

I have a 2005 A4 with 3.15 gears. Absoutely trouble free. I have taken the car to several 1/4 mile track rentals without any problems.

Unless you intend on materially increasing the horsepower the A4 as is will be fine.

Apr 15, 2008 | 03:43 AM

#12

keyplyr

Le Mans Master

Joined: Jun 2007

Posts: 7,610

Likes: 12

'05 A4 3:15s, no issues for 20k miles.

Then, as a proactive measure, I swapped out the trans for a custom built stage5 A4 w/ hardened shafts since I increased HP and upgraded to 3:73s with stall converter.

Now 3k miles later, still no issues except a big silly grin that will not diminish.

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