Rear drive unit shaft material any good?

[Engineer]

See engineer! I told you no one would make fun of the idea.I still have concerns about keeping it lined up tho. If it can be made rigid enough the very narrow width will be great.

I have been drawing up the Carrier/sprocket/5-link mounts to do the job, but I need to buy a halfshaft to figure out the exact rotation point of the CV.........  Spend money    In this economy. 

[Admin]

no way you get plunge... a arms are the only way or plunging axles... i have outer car cvs on my drak, inners have flanges welded on them, but i have plunging axles as well...and i think the idea of plunging in the spline more than 1/8 is bullshit...

[Admin]

Rc51 rhino and myself discussed using 2 hub assembly bearing in the center, and machining a tube to fit in the lug nut holes between the assemblys for the sprocket etc, jeeps have hub assembly with 1310 yokes that slide right in them...But fxxk them u joints, to expensive and do lots of damage when they break...

[Engineer]

[Admin]

Just not a believer of plunging the splines...

[Rick S.]

Me neither, seems like a bandaid for piss poor design.

[Engineer]

    Now hold on just a minute you two.

Using a 5-link or Parallel A-arms, and good design, the Plunge should be zero!  It get's a little trickier with camber built in, but it is the same as the support rod on Rick's rearend.  Plus or minus a few thousanths.

I would leave the shaft with the ability to move slightly, only to prevent potential binding.  We all know that nothing is perfect, mounts move, arms flex.  It has to be accounted for.

Ok!  Rant over.    Go back to bashing.

[Admin]

  Now hold on just a minute you two.

Using a 5-link or Parallel A-arms, and good design, the Plunge should be zero!  It get's a little trickier with camber built in, but it is the same as the support rod on Rick's rearend.  Plus or minus a few thousanths.

I would leave the shaft with the ability to move slightly, only to prevent potential binding.  We all know that nothing is perfect, mounts move, arms flex.  It has to be accounted for.

Ok!  Rant over.    Go back to bashing.

Oh i believe you have it figured out and are correct, But the other site has its following that freely tell all, it is perfectly acceptable to let the splines plunge... Plunging the splines as a backup precaution, imo is perfectly acceptable, designing around plunging splines imo is like sticking your "Daddy part" in a box of tacks. Its gonna get chewed up and sloppy real quick...

[Engineer]

I Agree.

[fabr]

  Now hold on just a minute you two.

Using a 5-link or Parallel A-arms, and good design, the Plunge should be zero!  It get's a little trickier with camber built in, but it is the same as the support rod on Rick's rearend.  Plus or minus a few thousanths.THat is easier said than done in the real world but the plunge can kept to a VERY small amount.

I would leave the shaft with the ability to move slightly, only to prevent potential binding.  We all know that nothing is perfect, mounts move, arms flex.  It has to be accounted for.

Ok!  Rant over.    Go back to bashing.

[fabr]

[Engineer]

See engineer! I told you no one would make fun of the idea.I still have concerns about keeping it lined up tho. If it can be made rigid enough the very narrow width will be great.

Me neither, seems like a bandaid for piss poor design.

[Admin]

Im pretty certain he was referring to the slipping splines...

[Engineer]

Could just make the drive shaft link #3 like a corvette or early SSC.

I just don't like the idea of CATASTROPHIC FAILURE.   

[Admin]

dsrace use to do that, but since has changed... I have a 3 link on the drak, but it has 3/4-1" of plunge i think...