LJ and long wheel base drive line help - JeepForum.com
Reply
 
LinkBack Thread Tools
post #1 of 23 Old 03-28-2014, 12:16 PM Thread Starter
UnlimitedJDB
Registered User
2005 LJ Wrangler 
 
Join Date: Oct 2011
Location: Victoria
Posts: 99
LJ and long wheel base drive line help

Ok, after a ton of research and back and forth in my head I need a bit of advice.

I currently have 3" of lift and want to do a tummy tuck. I'm set on the Nth degree skid which uses a low profile mount and will net me 2.5" or skid height, but only 1.5" of drive line lift for a total of 4.5" from stock. This is (based on reading I have done) the upper limit of lift in an LJ before needing an SYE and CV shaft. Also, I have just installed a 1 1/4 BL and 1" MML, so that will help a bit on pushing the 4.5".

SO the question is do I need adjustable upper arms to adjust the pinion angle with this much drive line lift, or does that only come into play when I install an SYE/CV? I can't seem to find the answer.

I dont want to buy the skid and then need adjustable arms, but I am ok with spacing the skid down 1/2"-1" for a few months until I have the funds for an SYE if there any vibes.


2005 LJ:
3" Zone coil lift-33x10.50 toyo MTs-Custom painted ravines-Custom home brew bumper
Smittybilt XRC comp winch-Smittybilt SRC roof rack-Custom home brew insta-trunk
UnlimitedJDB is offline  
Sponsored Links
Advertisement
 
post #2 of 23 Old 03-28-2014, 12:46 PM
XTRyan
ExtremeTerrain.com
 
XTRyan's Avatar
2012 JK Wrangler 
 
Join Date: Dec 2012
Location: Malvern
Posts: 2,120
Quote:
Originally Posted by UnlimitedJDB View Post
Ok, after a ton of research and back and forth in my head I need a bit of advice.

I currently have 3" of lift and want to do a tummy tuck. I'm set on the Nth degree skid which uses a low profile mount and will net me 2.5" or skid height, but only 1.5" of drive line lift for a total of 4.5" from stock. This is (based on reading I have done) the upper limit of lift in an LJ before needing an SYE and CV shaft. Also, I have just installed a 1 1/4 BL and 1" MML, so that will help a bit on pushing the 4.5".

SO the question is do I need adjustable upper arms to adjust the pinion angle with this much drive line lift, or does that only come into play when I install an SYE/CV? I can't seem to find the answer.

I dont want to buy the skid and then need adjustable arms, but I am ok with spacing the skid down 1/2"-1" for a few months until I have the funds for an SYE if there any vibes.
While you're still running the stock drive shaft you'll want the pinion angle of the rear differential to be at the same angle as the output shaft of the transfer case. If that angle is off considerably, you may have vibrations and wear on your U-joints.

If you can't accomplish that with the factory arms, you'll want some Adjustable Control Arms. If you go to a SYE and CV shaft, the adjustable arms will allow you to point the pinion at the output shaft, which is proper alignment for a CV shaft.

Let me know if you have any other questions or would like a quote!

-Ryan

Ryan H. | ExtremeTerrain.com Off-Road Outfitters
Toll Free: 800-988-4605 | Mon-Fri 10AM-6PM EST
Free Shipping on Orders Over $75!
EARN UP TO $200 TOWARD YOUR NEXT PURCHASE!
PM me for our JeepForum Discount Code (must have 25 posts) or Price-Matching!
WIN UP TO $10,000 IN WRANGLER MODS!
XTRyan is offline  
post #3 of 23 Old 03-28-2014, 01:11 PM
Tonellin
Registered User
2006 LJ Wrangler 
 
Join Date: Feb 2010
Location: Boston, MA
Posts: 2,086
Yes you will.

I'm in the same situation right now except with the UCF ultra high clearance. You will need rear uppers at a minimum

06 LJ Rubicon
http://www.jeep-owner.com/index.php/topic,748.0.html
Tonellin is online now  
post #4 of 23 Old 03-28-2014, 01:15 PM
mike_dippert
hodophobic
 
mike_dippert's Avatar
2005 LJ Wrangler 
 
Join Date: Jan 2006
Posts: 3,469
Garage
I spaced my skid plate down until I could afford the SYE. The MML will help.
mike_dippert is offline  
post #5 of 23 Old 03-28-2014, 04:32 PM Thread Starter
UnlimitedJDB
Registered User
2005 LJ Wrangler 
 
Join Date: Oct 2011
Location: Victoria
Posts: 99
Quote:
Originally Posted by Tonellin View Post
Yes you will.

I'm in the same situation right now except with the UCF ultra high clearance. You will need rear uppers at a minimum
What is the net driveline lift with that set up? I am assuming you are using the lo pro mount?

2005 LJ:
3" Zone coil lift-33x10.50 toyo MTs-Custom painted ravines-Custom home brew bumper
Smittybilt XRC comp winch-Smittybilt SRC roof rack-Custom home brew insta-trunk
UnlimitedJDB is offline  
post #6 of 23 Old 04-02-2014, 10:50 AM Thread Starter
UnlimitedJDB
Registered User
2005 LJ Wrangler 
 
Join Date: Oct 2011
Location: Victoria
Posts: 99
No one else can chime in on this? I am thinking about buying/building a TMR cross member and then I can put it where ever I like and then build a custom alum skid. But I think the goal is still to only net 1.5" more drive line lift.

2005 LJ:
3" Zone coil lift-33x10.50 toyo MTs-Custom painted ravines-Custom home brew bumper
Smittybilt XRC comp winch-Smittybilt SRC roof rack-Custom home brew insta-trunk
UnlimitedJDB is offline  
post #7 of 23 Old 04-02-2014, 11:31 AM
DBLJ
Registered User
 
DBLJ's Avatar
2005 LJ Wrangler 
 
Join Date: Apr 2007
Location: Braintree
Posts: 2,947
Maybe. The only way to find out is if you do it.

Buy my transmission cooler. Derale TJ cooler.
http://www.jeepforum.com/forum/f126/...0561-a-2936825
DBLJ is offline  
post #8 of 23 Old 04-02-2014, 12:37 PM
mike_dippert
hodophobic
 
mike_dippert's Avatar
2005 LJ Wrangler 
 
Join Date: Jan 2006
Posts: 3,469
Garage
Quote:
Originally Posted by UnlimitedJDB View Post
No one else can chime in on this? I am thinking about buying/building a TMR cross member and then I can put it where ever I like and then build a custom alum skid. But I think the goal is still to only net 1.5" more drive line lift.
What else do you want? 4" is the maybe/maybe not zone for LJ's. Like I said before, I spaced down my skid before I could afford a SYE. If you don't want to spend money on something that may not work, save until you can do it all at once.
mike_dippert is offline  
post #9 of 23 Old 04-02-2014, 01:11 PM
1 Long CJ
Registered User
2006 LJ Wrangler 
 
Join Date: Nov 2005
Location: SW Illinois
Posts: 553
Garage
So what is on the list for a Rubicon Unlimited tummy tuck? I'm running the BDS 3" and 1" BL.
It doesn't need an SYE. And having the longer wheelbase helps too, right?
Just the MML and cross my fingers?
Plan to get Adj. control arms eventually, anyway.

Life is short. Play hard.

1979 CJ5, 1982 CJ8, 2004 WJ, 2006 LJ Rubicon
1 Long CJ is offline  
post #10 of 23 Old 04-02-2014, 01:21 PM
j_bydesign
Web Wheeler
 
j_bydesign's Avatar
2004 TJ Wrangler 
 
Join Date: Sep 2008
Location: Hallandale Beach
Posts: 1,022
I installed the(OME 2.5" and 3" BL) Nth degree tummy tuck, 1" MML SYE and New Rear CV drive shaft along with uppers and lower CAs from Currie... If you can not afford to do it right... right now... then I would say wait... and save up until you can go all the way... I am NOT an LJ but rather a TJ and i have had absolutely NO death wobble and have run this set up for about two years... would do it all over agian in a heart beat... good luck with your build

http://www.jeepforum.com/gallery/dat...s/S5002031.JPG

'04 TJ(wheeler) '65 CJ5(sold :( )...'05 LJ(DD) 89' Int. Harvester Toter (get the TJ to and from)!
j_bydesign is offline  
post #11 of 23 Old 04-02-2014, 01:24 PM
Tonellin
Registered User
2006 LJ Wrangler 
 
Join Date: Feb 2010
Location: Boston, MA
Posts: 2,086
You'll nee a new DC driveshaft. Also, with just a 1" BL you're most likely going to have to do some hammer time on the tub to get the very large 241 wedged up in there. A cable shifter upgrade is also highly recommended (Novak or Savvy)

06 LJ Rubicon
http://www.jeep-owner.com/index.php/topic,748.0.html
Tonellin is online now  
post #12 of 23 Old 04-02-2014, 01:29 PM
Tonellin
Registered User
2006 LJ Wrangler 
 
Join Date: Feb 2010
Location: Boston, MA
Posts: 2,086
[QUOTE=j_bydesign;21800889] 3" BL /QUOTE]



got any more pics?

06 LJ Rubicon
http://www.jeep-owner.com/index.php/topic,748.0.html
Tonellin is online now  
post #13 of 23 Old 04-02-2014, 01:46 PM Thread Starter
UnlimitedJDB
Registered User
2005 LJ Wrangler 
 
Join Date: Oct 2011
Location: Victoria
Posts: 99
Quote:
Originally Posted by Tonellin View Post
You'll nee a new DC driveshaft. Also, with just a 1" BL you're most likely going to have to do some hammer time on the tub to get the very large 241 wedged up in there. A cable shifter upgrade is also highly recommended (Novak or Savvy)
I'm not a rubicon, so there is no 241 for worry about.

From the previous reading I have done most guys didn't need a DC shaft with 4.5" net lift, if using upper or lower adjustable arms, and some didn't even need adjustable arms.

I'm just trying to gauge what I need based on as many people's experience as possible.

2005 LJ:
3" Zone coil lift-33x10.50 toyo MTs-Custom painted ravines-Custom home brew bumper
Smittybilt XRC comp winch-Smittybilt SRC roof rack-Custom home brew insta-trunk
UnlimitedJDB is offline  
post #14 of 23 Old 04-02-2014, 01:55 PM
Tonellin
Registered User
2006 LJ Wrangler 
 
Join Date: Feb 2010
Location: Boston, MA
Posts: 2,086
Quote:
Originally Posted by UnlimitedJDB View Post
I'm not a rubicon, so there is no 241 for worry about.

From the previous reading I have done most guys didn't need a DC shaft with 4.5" net lift, if using upper or lower adjustable arms, and some didn't even need adjustable arms.

I'm just trying to gauge what I need based on as many people's experience as possible.
Crap sorry, that got messy because I didn't quote '1 Long CJ' question. I thought you and him were the same person. I'd be hard pressed to imagine guys getting away without adjustables at that much lift. I've got the 3" BDS and with my UCF tummy tuck I've heard nothing but guys telling me I'll need a DC DS which bummed me out because I wasn/t originally planning on getting one

Quote:
Originally Posted by 1 Long CJ View Post
So what is on the list for a Rubicon Unlimited tummy tuck? I'm running the BDS 3" and 1" BL.
It doesn't need an SYE. And having the longer wheelbase helps too, right?
Just the MML and cross my fingers?
Plan to get Adj. control arms eventually, anyway.
My response above was to you not 'UnlimitedJDB' haha

06 LJ Rubicon
http://www.jeep-owner.com/index.php/topic,748.0.html
Tonellin is online now  
post #15 of 23 Old 04-02-2014, 02:19 PM
J03_TJ
Web Wheeler
 
J03_TJ's Avatar
2003 TJ Wrangler 
 
Join Date: Jul 2009
Location: Reno
Posts: 4,040
You won't need a Novak cable kit. The Nth TT has its own solution to that issue, at least it did when I installed mine. Sorry cannot help with your question as I have a TJ and have 4" lift springs.
J03_TJ is offline  
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.



Email Address:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On

 
For the best viewing experience please update your browser to Google Chrome