Xride

http://www.1le.net/
then go to part numbers.

its not listed, and I have yet to find anyone that says it has an alumium.

I crawled under my car and its steel. and I know he didnt change that like he did the koni's (I hate people that change parts with inferier ones)

94BlackBowtie

I say if you are gonna be making serious power - ditch any stock driveshaft.

I have seen a couple of aluminum ones twisted out of LS1's with not much done...just a good bite and lucky rear-end I suppose...it at the dragstrip both times. They are EXTREMELY thin though - I would think any high HP application should just get a stronger/aftermarket one.

I would still use it if I were you though - and sell the steel one - I wouldn't pass it off as useless.

greensmoke

This largest advantage is the fact the the aluminum is balanced, your steel one is not. Swap it in there and see if you notice a difference, especially at high speed. Takes about 5 minutes to swap.

Capn Pete

Do the aluminum shafts still use a steel end for the U-joints? I think I've heard that they will break where that steel end meets the aluminum tube? Steel driveshafts can have the U-joints fail obviously, but I think they would be less prone to "break" compared to an aluminum shaft. They can twist, but aluminum breaks easier I think?

I don't care about that extra few pounds............just make more power, and you won't notice your steel driveshaft.

Mtrhds94Z

Correct me if I asm wrong here, but while there are instances of LS1 aluminum driveshaft failures reported, I have yet to come across a 1LE failure?

ABA383

I can't speak for the 1LE shaft, but as I posted a few posts back...I've had my LPE 3.5" aluminum behind 420rwhp since 1995. and have never replaced or had to rebalance anything...plus it shed a few pounds off of the rotating mass. I know that A4s are generally easier on the driveline, but my 60's are always in the 1.60-1.70 range....over the last 10 years I've gotten my $350 worth
--Alan

SignatureSeries

less rotational mass.Much lighter than stock.

RS Dragster

There was a guy with a stock LS1 Firehawk with DR's that snapped his aluminum DS. Just too much grip. Once he got it fixed, he found out his rear also went bye-bye