Cascade Crew

blue89 · Posted: Tue Aug 29, 2006 10:16 am Post subject: Axle Stuff

Amorget mentioned at The Cruise that I should swap my 26 spline axle shafts for 28's. I just want confirmation that the axles are direct swappable. Also, will it be easier for me to find 28 spline posi/lsd units? I'm having a hard time finding any period! The only one I've been able to find is a 26 spline, but its a 2 series.

I'm seriously getting frustrated at all of these different rearend configurations. I need traction control now, before I loose my point standings in autocross!!!

Dewey316 · Posted: Tue Aug 29, 2006 10:21 am Post subject:

You need whatever axles match whatever carrier you have.

If you have a 26spline carrier, you need 26 spline axles, and vise/versa wtih 28spline.

blue89 · Posted: Tue Aug 29, 2006 10:57 am Post subject:

But whats the better/easier thing to do? Do disk/drum axles differ? Or would I need to find a drum axle? If there is a good rear end tech reference somewhere i would appreciate a link so I can learn without posting on forums.

blue89 · Posted: Tue Aug 29, 2006 11:24 am Post subject:

http://www.ws6transam.org/10bolt.html

http://www.thirdgen.org/beefinguprear

woo hoo!

Xophertony · Posted: Tue Aug 29, 2006 1:07 pm Post subject:

YES disc and drum axles are physically different on a 10 bolt. the flange that the wheel studs are pressed into is physically bigger around on a drum axle. if you use a drum axle for disc rears you will need to machine this edge down.

you CAN use a disc axle on a drum rear. you can NOT use a drum axle on a disc rear.

blue89 · Posted: Tue Aug 29, 2006 1:21 pm Post subject:

then why did my disk brake conversion work?

Xophertony · Posted: Tue Aug 29, 2006 1:25 pm Post subject:

hmmm.....

i have no explination for that.

ok, here is what i based that on. so far paul (twilightoptics) has replaced TWO axles in his car, both drum axles, both had to be lathed down. the first one hae got from me, came out of a 10 bolt 3 series posi from a 1986 originally. the second was of unknown junkyard fbody origin.
perhaps they switched mid generation to having them all the same.

Quasi-Traction · Posted: Tue Aug 29, 2006 2:31 pm Post subject:

blue89 · Posted: Tue Aug 29, 2006 2:45 pm Post subject:

26 spline.

Called GM dealer for PN 12471371 (3 series Torsen)

$740 ! ! ! ! !

Dewey316 · Posted: Tue Aug 29, 2006 2:46 pm Post subject:

YOu can uaualy find them for $100. Posi's go up for sale all the time, check e-bay. I got my Eaton for $100 on ebay.

--john

blue89 · Posted: Tue Aug 29, 2006 3:02 pm Post subject:

Ebay = scary Shocked

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2328

chevymad · Posted: Tue Aug 29, 2006 7:26 pm Post subject:

Hey Rod, don't feel left out. That auburn I gave you was a $50 ebay special.

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2328

chevymad · Posted: Tue Aug 29, 2006 10:30 pm Post subject:

If I remember right the spec was only like 40-50ft/lbs.