bene

iTrader: (16)

Aluminum driveshaft?

This is what mine looks like... Its rusty and it doesn't seem like aluminum to me.

RevGTO

iTrader: (12)

No, dude. Cars with 2.73 gears came with a nasty steel driveshaft like the one you have ...

Krab

iTrader: (28)

It might be "nasty" looking, but it will more than likely put up with more abuse than the aluminum one. Ask me how I know.

RevGTO

iTrader: (12)

j/k on the "nasty" thing ... I can guess how you know ... In all seriousness, though, the one downside to the steel is a tendency to vibration at high speed - ask me how I know. They've been known to crack tailshaft housings on A4's. And we know what the aluminum ones can do on M6's.

Gregg1LE

iTrader: (5)

Can't the steel driveshaft be professionally balanced to eliminate the high speed vibration? That is what i did years ago on my "old school" musclecars

bene

iTrader: (16)

So what are you all trying to say? They both suck? I'm trying to decide if I should keep my steel one or replace it w/ aluminum ds.

RevGTO

iTrader: (12)

There was a thread on this recently and you can get more opinions there ... personally, I'd say that if you're not having any problems with vibration, just leave it. I replaced mine with aluminum when I went to 3.42's because of previous experiences with the steel ones causing bad vibrations on my 3.23 A4 LT1 cars.

buffman

iTrader: (9)

Well if they can affix the weights to it, without puncturing the shaft then it can be balanced. I can have my shaft balanced by the same people who originally built it (AAM), but it's next to impossible to balance a rusted shaft because if you have to add weights, you can blow holes in it, making the shaft worthless.

RevGTO

iTrader: (12)

Not really, because it was the "dampner" on the yoke (meant to reduce noise) that causes the vibrations. I have the driveshafts balanced on my "old school" musclecars as well - see sig - but due to my LT1 experience, I have an aversion to the steel shafts on 4th gens. They weigh about 1000 lbs. and I just don't like 'em ...

MrCadillac

DAMN!! thats heavy!!

Urban Legend

iTrader: (5)

Put a carbon fiber driveshaft on it.