how strong is the 1998 steel driveshaft - LS1TECH



Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

how strong is the 1998 steel driveshaft

Reply
 
Thread Tools Search this Thread
Old 03-25-2012, 09:34 PM   #1
On The Tree
Thread Starter
iTrader: (8)
 
Join Date: Feb 2006
Location: St. Louis
Posts: 143
Default how strong is the 1998 steel driveshaft

I have an m6 with a ford 9" and ET streets.
Using the stock aluminum ls1 driveshaft right now but worried it could twist.
I have a 98 steel driveshaft.
Instead of spending $300 on an aftermarket driveshaft I was thinking of just putting a Spicer 5-795x u-joint and napa 447 u-joint in.
Other then a little more rotational weight, would this be decent stength upgrade for almost no money?
Seems everyone goes aftermarket DS. Is that because people don't think about the 98 steel shaft or just that they wouldn't be a good alternative?
Aaron91RS is offline   Reply With Quote
Old 03-25-2012, 10:40 PM   #2
Moderator
iTrader: (11)
 
jimmyblue's Avatar
 
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,573
Default

Bad idea.

While it may not break, the stock steel driveshafts are
not stiff enough and are prone to whip if overspun.
This is how a lot of people break tailhousings. Any
gear ratio higher than the 2.73 wants the aluminum
or aftermarket.
jimmyblue is offline   Reply With Quote
Old 03-25-2012, 10:43 PM   #3
TECH Fanatic
 
Join Date: Nov 2001
Location: IL
Posts: 1,030
Default

Plus, the stocker really isn't the correct size for a 9". For your own and others safety, get the right DS.
2QuikTA is offline   Reply With Quote
Old 03-26-2012, 08:58 AM   #4
Internet Mechanic
iTrader: (17)
 
BlackScreaminMachine's Avatar
 
Join Date: May 2005
Location: Wallingford CT
Posts: 9,839
Default

Do it right. I got a 3" Steel from Denny and working fine.
BlackScreaminMachine is offline   Reply With Quote
Old 03-27-2012, 12:56 AM   #5
TECH Senior Member
iTrader: (90)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 21,607
Default

I've seen M6s lift tire on a stock steel DS. While I believe they are stronger and less prone for failure on launch then a stock aluminum shaft, I can't give you the advice to do this. I would recommend getting a good shaft.
01ssreda4 is online now   Reply With Quote
Old 03-27-2012, 12:19 PM   #6
Moderator
iTrader: (11)
 
jimmyblue's Avatar
 
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,573
Default

I've also seen a local guy bust both the trans and diff
yoke with the steel driveshaft, which came out looking
OK.

It's not failure strength per se, but the inadequate
stiffness letting the shaft bow out (whip) at higher RPM.
jimmyblue is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Stock fbody aluminum driveshaft with NAPA (447) 1350 u-joint Burken01 Parts Classifieds 12 07-11-2016 07:00 PM
U-Joints 1LE Hugger Orange New LS1 Owners - Newbie Tech 5 02-06-2015 05:34 AM
Which U-joint? jbrockwell Gears & Axles 2 09-19-2014 12:44 PM
Steel Driveshaft w/ upgraded Spicer U-joints Yahelou Parts Classifieds 20 12-16-2011 09:20 AM
Bad u-joint....? 99monguse Gears & Axles 1 04-20-2010 08:45 PM


Tags
aftermarket, alumi, aluminum, drive, driveshaft, fit, inch, ls1, lt1, nitrous, shaft, steel, stock, strong, t56

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 03:40 PM.