DóòD

I need a quick answer on this...

If anyone saw this thread...

https://ls1tech.com/ubb/cgi-bin/ulti...c&f=8&t=001181

I had ordered a gu5 formula..It came in as a gu2 <img src="gr_images/icons/mad.gif" border="0">
I was told that they can swap out the the rear.
But (with help from ls1tech), I was reminded that
this includes an aluminum driveshaft..and of course
a reprogramming/or new PCM

I had a thought.
If they are willing to swap the rear, would it be possible
to try and work our a deal with 3.73 or 3.42 gears?
Maybe they can do it..and warranty it?
Does GM (factory..or the performnace catalog) offer these gears?
And if so..should I also have em put in the aluminum driveshaft with such a setup?

I just got off the phone with em...
If such a thing can be done I may go for it...

But the upshot is...does GM offer 3.73's (or 3.42's) under any other package that would be covered under warranty?

Quick answers will help decided my fate! <img src="gr_grin.gif" border="0">

Toxic Texan

The M6 can get the 3.42 gears. Now are they just changing the gears and the drive shaft? Remember 2.73's come with a weaker 2 series carrier 3.23's come with the 3 series carrier. You need to ask them what they are gonna do about that?

DóòD

I just called em...
I raised this possibility...
Put in 3.42's..and I'll eat the difference on the cost of the gears...
And what would that be? A few hundered bux?
Also, they'd have to swap tires..getting rid of the crappy RSA's

So..they are going to check into the feasibility of
doing this..

Now..because you cant order 3.42's on a factory A4,
,(as far as I know anyway) but can have it done by GM anyway (sorta like the 'ol hurst packages or others that are still covered by GM)
This may turn out to be a blessing in disgiuse...

But...Would the steel driveshaft be better/stronger for such an application? Or should I still (if this deal is possible) demaind the aluminum DS??

Help Help!! <img src="gr_grin.gif" border="0">

[ February 11, 2002: Message edited by: DóòD ]</p>

Toxic Texan

What do you plan on doing Mod wise? If you are going to be a bolt-on guy for awhile get the aluminum DS. Hell the only person I know had problems with the Aluminum DS is Nineball. So get the aliminum DS!! <img src="gr_grin.gif" border="0">

DóòD

[quote]Originally posted by Toxic Texan:
<strong>What do you plan on doing Mod wise? If you are going to be a bolt-on guy for awhile get the aluminum DS. Hell the only person I know had problems with the Aluminum DS is Nineball. So get the aliminum DS!! <img src="gr_grin.gif" border="0"> </strong><hr></blockquote>

I'm not doing any big mods...
Just the basic stuff...induction, exhaust..maybe converter.

So.. what are you opinions on going with this setup?
Provided the dealer bites on the compromise...

Colonel

I don't think, but I could be wrong, that GM ever put 3.73 gears in this rearend in any car. If that's the case you'd have to buy aftermarket gears. I doubt they'll warranty this.

The steel shaft is a little bit sturdier. The aluminum shaft is quite a bit lighter. Your pick. I'd go with the aluminum and if I broke it (very unlikely with an A4 unless you get really serious) I'd go aftermarket.

Will they program your computer for the gears? My dealer didn't know how to do this since none of these cars ever came with 3.73s. Maybe yours can? If not, there are of course other ways.

BTW, there should be no cost difference between 3.42 and 3.73 gears.

DóòD

Well.. 3.73's are out...
I offered the compromise with 3.42's (safer)

And yes..I would expect them to change or reprogram the PCM for this.

If the steel DS is 'stronger' then It may be wise in the long run to let em off the hook for it??

Patman

The real question is, can they program the computer properly for a 3.42/A4 combo? I know that combo is available on the V6, but obviously that program is totally different.

LS1LT1

iTrader: (16)

It's not likely that they'll ever approve the 3.42 swap, aside from the obvious PCM/odometer calibration issues it's also a 'potential future owner' warranty issue. They might agree to 3.23s though which are also easy to flash the PCM for as well.

Crazyquik

What gears did the Pontiac NHRA Edition have?

DóòD

[quote]Originally posted by Crazyquik:
<strong>What gears did the Pontiac NHRA Edition have?</strong><hr></blockquote>

3.23

minty

well let me say this....GM can do that for you dood...and they will warranty it....the only question is whether this dealership is willing to do it....if i were you id have them put a 3.42 rear end in it....which they can do...and just buy a hypertech....that would solve everything....

Pro Stock John

iTrader: (34)

3.73's never came in our cars stock, so it would require a one-off request from GM's pcm folks.

I'd go for the 3.42's why not.

Alum driveshaft is just lighter.

I run a stock steel one in my car for safety reasons.

DóòD

UPDATE...UPDATE!!

First thing...
THANKS FOR ALL YOUR RESPONSES!!

I just got off the phone with the dealer..
The confirmed that a 3.42 gear IS POSSIBLE! <img src="gr_grin.gif" border="0">

Right now they are working the numbers to see what it will be as well as the work that will have to be done.

Provided the numbers look good, I think I'll go for it.
Basically what this means is
3.42 gears.
PCM programming.
New Tires (It shipped with crappy RSA's)
No new Drive Shaft. I was told that the 02 comes with an aluminum DS..even with 2.73's
Can anyone confirm this?!?!
And if not, how can I tell the difference if I were to inspect it myself??

I think I can except this deal as 3.42 gears are not an option from the factory.
BUT.. If GM parts are used, and GM installs it, I would expect to have it covered under the standard warranty.
With the rebate, I still expect to come out ahead.
Hmmm..this may turn out to be a bit more 'custom' than I thought!! <img src="gr_grin.gif" border="0">

I should have more info in a few more days.

Patman

[quote]Originally posted by DóòD:
<strong>

No new Drive Shaft. I was told that the 02 comes with an aluminum DS..even with 2.73's
Can anyone confirm this?!?!
And if not, how can I tell the difference if I were to inspect it myself??

</strong><hr></blockquote>

Bring a magnet with you and get under the car and see if it sticks to the driveshaft. If it sticks, it's a steel driveshaft.

I'm glad to hear that things worked out for you in the end!

Toxic Texan

Your door sticker is going to look funny with the White Out on it. <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />

DóòD

[quote]Originally posted by Patman:
<strong>

Bring a magnet with you and get under the car and see if it sticks to the driveshaft. If it sticks, it's a steel driveshaft.

I'm glad to hear that things worked out for you in the end!</strong><hr></blockquote>

Basic metallurgy ...heheheh
Thanks!!
I'll take my ROUTE 66 refrigerator magnet with me.. <img src="gr_grin.gif" border="0">

White out on the door.. <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />

I figure it this way...if I like the deal, the work they expect to do, and it doesnt cost me alot, WHY NOT?!?!
I'll play stupid and put my faith in GM and their techs to do a good job...
At least I'll be able to except it as a 3.42 geared car 'from GM'...
Hey..dealers can slap on stickers body trim and cover it as part of the warranty...why not gears!!
<img src="gr_grin.gif" border="0">

We shall see how this plays out...

DóòD

Its a fuster cluck...

I'm ordering a new car...
They backed out on the 3.42 install and want to charge me big for it... <img src="gr_images/icons/mad.gif" border="0">

Time to work on a persons machine...
(Just another person acting like a friend trying to get free computer work... oh well)

Somebody lock this silly thread!
I need a beer... <img src="graemlins/gr_cry.gif" border="0" alt="[whiner]" />

DriveATransAm

do s10s have a 3.73 option? i know they have a 3.42 (used them on my swap on the V6), and they are 7.5".

Colonel

Here's your beer... <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />

Sorry to hear it worked out like that. <img src="gr_sad.gif" border="0">

You really want this locked?