Aluminum 2 Piece Drive line question

[CoopKill]

I picked up the two piece aluminum drive line from 3sx which looks to be very nice.

My question is:

Why do they not make the front section from aluminum as well? Other than a possible problem mounting the slip spline to the aluminum which could be solved with another u-joint, I see no reason not to continue the weight savings by eliminating all the steal.

I am not engineer, so I post this question to you people.

[CoopKill]

Up top for Ideas! Where are all you brilliant bastards at?

[MR2]

I had the same question...rear looks like sex..front looks like arse.

I suspect it's due to replacing the front with Alu as well costing the same as going carbon fiber and those who are to cheap to go CF needing a cheaper option...

[EvanH]

In for any better answers. I am still curious how it is the same weight as the 2 piece CF...

[MR2]

how what's the same weight as a 2 piece CF?

[Chris@Rvengeperformance]

no one makes the slip section in aluminum and another joint would negate a lot of the benefits of trying to make the front out of aluminum.

[CoopKill]

ok, now that makes sense.

[MR2]

I wonder what the figures were for another join + alu front.

[EvanH]

MR2 - this is what I was talking about earlier. From 3sx's Web page. "3SX now carries PST carbon fiber drive-shafts! Weighing in at a svelte 17 pounds for the 1-piece shaft and 27 pounds for the 2-piece kit (not counting the included carrier bearing),".

And for the 2 piece steel aluminum, "This 2-piece driveshaft offers a more affordable option for saving weight in your drivetrain - 26.55 pounds versus the stock 40 pound assembly! The 26.5 pound weight is without the carrier bearing, the assembly weights 28.45 pounds with the included carrier. The back half of this setup is aluminum and features greasable and serviceable

[MR2]

oh...sweet!

the aluminium half of the job weigh's 3/5's of eff all..still gotta put the line down it to see if it bends :p

deff be keen to see a alu front end..just bolt up the two x slip sections as required :p loose another kg or 2 :p (not really worth it for the effort...but PLEASE MOM IT'S ALL SHINEY.

err yeah.

[MR2]

did you notice it was tight light a tiger getting the rear of the shaft into the diff flange? I ended up essentially balancing the bolts and using them to force the whatever you call it into the diff flange.

[CoopKill]

yeah it was tight! Nice, but not too tight. I did get it almost all the way on with elbow grease. Then I tightened with the bolts.

[93mitsVR4]

I just got my Aluminum DS in the mail today and i was wondering how hard of a job it is to replace. Also i was wondering if anyone had a write up for it. The only DS install write up i can find is for the CFDS.

[MR2]

See answer in your other thread :)

[ArleneJ]

I picked up the two piece aluminum drive line from 3sx which looks to be very nice.

My question is:

Why do they not make the front section from aluminum as well? Other than a possible problem mounting the slip spline to the aluminum which could be solved with another u-joint, I see no reason not to continue the weight savings by eliminating all the steal.

I am not engineer, so I post this question to you people.

The front section is steel as it is difficult to weld steel to aluminum - just does not make a good marriage - especially on high performance driveshaft. Hope this little bit of info helps....

Thanks & Have a Great Day,

Arlene - PST, Inc.

[Chatzvr4]

In for any better answers. I am still curious how it is the same weight as the 2 piece CF...

It just comes down to cost. because of the length of the drive shaft you really dont want a one peice in aluminum. it is said it will vibrate to much. to build a full two piece aluminum would basically mean two drive shafts doubling the cost of the drive shaft. We found a company locally over here that have begun building ours for us. which will be aluminum front and rear shafts. We will start putting them to market after we test them out. we should be hitting the market for under 850.00

[2fnloud]

It just comes down to cost. because of the length of the drive shaft you really dont want a one peice in aluminum. it is said it will vibrate to much. to build a full two piece aluminum would basically mean two drive shafts doubling the cost of the drive shaft. We found a company locally over here that have begun building ours for us. which will be aluminum front and rear shafts. We will start putting them to market after we test them out. we should be hitting the market for under 850.00

You guys are creating AWESOME products for the 3S platform and offering amazing prices! Please don't stop.

[NOMIEZVR4]

You guys are creating AWESOME products for the 3S platform and offering amazing prices! Please don't stop.

X2

Nomie

[MR2]

very much looking forward to buying a Genuine 2 piece ALu...

also keen to see weight figures on it etc.

[R/T93]

I will buy one if you get it made :)

[IPD]

It just comes down to cost. because of the length of the drive shaft you really dont want a one peice in aluminum. it is said it will vibrate to much. to build a full two piece aluminum would basically mean two drive shafts doubling the cost of the drive shaft. We found a company locally over here that have begun building ours for us. which will be aluminum front and rear shafts. We will start putting them to market after we test them out. we should be hitting the market for under 850.00

any possibility of getting one with the nipple to fit the w4a33 xfer case? :)

[MR2]

Just couse your always a pain in the arse IPD.

[IPD]

Just couse your always a pain in the arse IPD.

you DO realize that the front section is pretty much the only difference between 6-speed and atx driveshafts, right? ;)

[Chatzvr4]

the only way would i could do that is to have the specs of your yoke or the actual piece

[MR2]

there are what...2 people who attempt to do some sort of performence increase on a ATX :p BOTH of them are PITA :p (hello Nelson, just joking :p)

[IPD]

the only way would i could do that is to have the specs of your yoke or the actual piece

...working on getting a spare of that piece. :)