30 spline chromos? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > 30 spline chromos?

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineGrizzly Lockers available at Rockridge4wd.comThe ULTIMATE "Selectable" Locker System! Brough

Reply
Unread 12-23-2012, 10:26 AM   #1
Pru-J
Registered User
2001 TJ Wrangler 
 
Join Date: Mar 2012
Location: texarkana, texas
Posts: 95
30 spline chromos?

I have a 94 yj 4.0 stock motor. I want to change out the 27 spline with some 30 spline chromos off a TJ with a locker. One of my person jeep friends says I'll have too truss and sleeve my axle? Any help guys? TIA

__________________
JEEP: its not what you buy, its what you build.
Pru-J is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 10:36 AM   #2
jbolty
Moderator
 
jbolty's Avatar
1990 YJ Wrangler 
 
Join Date: Jun 2007
Location: San Diego, CA
Posts: 15,866
Depends on what your plans are. Personally I stayed with 27 because spares are readily available and you seldom see broken front shafts; normal the joints break first.

Not sure what the axle splines have to do with trussing. You can truss if you want, or not.
__________________
.
"The right to be heard does not necessarily include the right to be taken seriously." —Hubert Humphrey
.
If you live within wheeling distance of San Diego county, click here
jbolty is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 10:43 AM   #3
RockWoRM
Web Wheeler
 
RockWoRM's Avatar
1992 YJ Wrangler 
 
Join Date: Mar 2006
Location: Fresno, Ca.
Posts: 8,411
I just hope you're refering to the D30 and not the turdy 5.
__________________
'92 YJ, 4.0, 5sp, 8.8 w/ 4.56's locked F&R, Teralow 4-1, HD SYE, BDS 5" SUA lifted on 35 MTR's. PSE front trail cage kit, 1ton TRE flip, 1"shackles, 1"BL, 1" MM. <><

Quote:
Originally Posted by 80 CHOPPER View Post
Knowledge is a tool, without knowledge, you are just a tool.
RockWoRM is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 10:47 AM   #4
Pru-J
Registered User
2001 TJ Wrangler 
 
Join Date: Mar 2012
Location: texarkana, texas
Posts: 95
Quote:
Originally Posted by RockWoRM
I just hope you're refering to the D30 and not the turdy 5.
Yes the 30 lol I hate that 35. Going to put a 8.8 back there once I'm stateside
__________________
JEEP: its not what you buy, its what you build.
Pru-J is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 10:49 AM   #5
Pru-J
Registered User
2001 TJ Wrangler 
 
Join Date: Mar 2012
Location: texarkana, texas
Posts: 95
Quote:
Originally Posted by jbolty
Depends on what your plans are. Personally I stayed with 27 because spares are readily available and you seldom see broken front shafts; normal the joints break first.

Not sure what the axle splines have to do with trussing. You can truss if you want, or not.
Well I'm going to have 38s on her when I get back stateside. Trying to make trailer rig out of her lol
image-414656284.jpg  
__________________
JEEP: its not what you buy, its what you build.
Pru-J is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 10:56 AM   #6
RockWoRM
Web Wheeler
 
RockWoRM's Avatar
1992 YJ Wrangler 
 
Join Date: Mar 2006
Location: Fresno, Ca.
Posts: 8,411
In that case go for it. Keep in mind 'if' you do break anything, it may be more expensive to replace since the 30 spline set up is custom. Also, as far as sleeving the 30. The only one I recall doing it on this board is Joe Dillard. But that was b/c he cracked a tube, which IMHO is rare. Of course, with 38's, a truss would'nt hurt. Good luck.



WRM
__________________
'92 YJ, 4.0, 5sp, 8.8 w/ 4.56's locked F&R, Teralow 4-1, HD SYE, BDS 5" SUA lifted on 35 MTR's. PSE front trail cage kit, 1ton TRE flip, 1"shackles, 1"BL, 1" MM. <><

Quote:
Originally Posted by 80 CHOPPER View Post
Knowledge is a tool, without knowledge, you are just a tool.
RockWoRM is offline   Reply With Quote Quick reply to this message
Unread 12-23-2012, 12:00 PM   #7
jeepster93
Registered User
1993 YJ Wrangler 
 
Join Date: Sep 2006
Location: Englewood, CO
Posts: 3,947
I run 30 spline axle shafts with an Arb locker and ctm ujoints. Nothing is going to break as long as i do not bind it up.
By tj shafts you mean no disco.?
I have also strengthened the tubes too.

A SUPER 30.
jeepster93 is offline   Reply With Quote Quick reply to this message
Unread 12-24-2012, 09:16 AM   #8
RockWoRM
Web Wheeler
 
RockWoRM's Avatar
1992 YJ Wrangler 
 
Join Date: Mar 2006
Location: Fresno, Ca.
Posts: 8,411
Quote:
Originally Posted by jeepster93 View Post
I run 30 spline axle shafts with an Arb locker and ctm ujoints. Nothing is going to break as long as i do not bind it up.
By tj shafts you mean no disco.?
I have also strengthened the tubes too.

A SUPER 30.
Tom, did you sleve yours too? or something else?
__________________
'92 YJ, 4.0, 5sp, 8.8 w/ 4.56's locked F&R, Teralow 4-1, HD SYE, BDS 5" SUA lifted on 35 MTR's. PSE front trail cage kit, 1ton TRE flip, 1"shackles, 1"BL, 1" MM. <><

Quote:
Originally Posted by 80 CHOPPER View Post
Knowledge is a tool, without knowledge, you are just a tool.
RockWoRM is offline   Reply With Quote Quick reply to this message
Unread 12-24-2012, 09:30 AM   #9
'92 vegas YJ
R.I.P. Ratmonkey
 
'92 vegas YJ's Avatar
1992 YJ Wrangler 
 
Join Date: Jan 2008
Location: Jacksonville, NC
Posts: 2,379
Quote:
Originally Posted by RockWoRM View Post
as far as sleeving the 30. The only one I recall doing it on this board is Joe Dillard. But that was b/c he cracked a tube, which IMHO is rare. Of course, with 38's, a truss would'nt hurt. Good luck.



WRM
And Joe's old sleeved/trussed D30 is doing well under my rig now.

__________________
~'92 YJ with many upgrades and many more calling my name..... it never ends
~'07.5 Dodge Ram Megacab 2500, 6.7L Cummins turbo diesel

April 2012, May 2013, May 2014 YJ of the month
'92 vegas YJ is offline   Reply With Quote Quick reply to this message
Unread 12-24-2012, 10:48 AM   #10
jeepster93
Registered User
1993 YJ Wrangler 
 
Join Date: Sep 2006
Location: Englewood, CO
Posts: 3,947
Quote:
Originally Posted by RockWoRM View Post
Tom, did you sleve yours too? or something else?
Sleeving it would be the best thing...
NOT what I did, of course. Would make too much sense for me to do it the right way.
So...
I took some left over steel(3/8 inch thick) and made this little ..."thing" that I welded over the tubes.
Does it help??? I have no clue except to say haven't bent them...yet.


Can see the little pieces I welded on the tubes here:
(That piece from the pumpkin to the disco on this side, shorter on the drivers side, but still a welded piece there.)



Here is another pic of a different project that shows a bit of how I welded and cut it to fit:
jeepster93 is offline   Reply With Quote Quick reply to this message
Unread 12-24-2012, 11:27 AM   #11
Joe Dillard
Electric Chair Operator
1991 YJ Wrangler 
 
Join Date: May 2004
Location: King George, VA
Posts: 12,385
Quote:
Originally Posted by '92 vegas YJ View Post
And Joe's old sleeved/trussed D30 is doing well under my rig now.
Nice it does the heart good to know that my old HPD30 is still doing some good.
Joe Dillard is offline   Reply With Quote Quick reply to this message
Unread 12-24-2012, 12:43 PM   #12
fratis
......
 
fratis's Avatar
1991 YJ Wrangler 
 
Join Date: Dec 2003
Location: Hale'iwa, Hawai'i
Posts: 4,902
Quote:
Originally Posted by jbolty View Post
Depends on what your plans are. Personally I stayed with 27 because spares are readily available and you seldom see broken front shafts; normal the joints break first.

Not sure what the axle splines have to do with trussing. You can truss if you want, or not.
hmm ive broken shafts but never a ujoint. and i had the "small" ones.
__________________
-insert meaningless out-of-place political diatribe-
fratis is offline   Reply With Quote Quick reply to this message
Unread 01-19-2013, 05:12 PM   #13
Pru-J
Registered User
2001 TJ Wrangler 
 
Join Date: Mar 2012
Location: texarkana, texas
Posts: 95
Quote:
Originally Posted by fratis

hmm ive broken shafts but never a ujoint. and i had the "small" ones.
Yeah... I just broke my u joint the other day haha and unfortunately I'm overseas. I order the 1310 spicer hopefully my size isn't the 1330 because I do have the tom woods driveshaft
__________________
JEEP: its not what you buy, its what you build.
Pru-J is offline   Reply With Quote Quick reply to this message
Unread 01-19-2013, 05:20 PM   #14
MLJeeper
Registered User
1988 YJ Wrangler 
 
Join Date: Nov 2004
Location: Birmingham, Al.
Posts: 5,029
Ive twisted the splines on the stock shafts and the long side chromo which is also 27 spline. Also snapped a stub shaft. But So far I have not snapped the larger u joint.My breakage of the 27 spline stuff is very rare actually. Even though i would never drop the cash on a set of 30 spline shafts and locker for the Dana 30 I think that would make the setup pretty darn reliable with my 35s.

Still, 38s are too much for a Dana 30 in any configuration. Just my 2 pennies.
__________________
Your limited slip differential sucks.

Quote:
Originally Posted by Anticanman View Post
Any video of the sound?
MLJeeper is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.