Driveshaft question. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-11-2013, 07:46 AM   #1
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
Driveshaft question.

Since I just installed all my smittybilt armor I've decided to start my 44 or 8.8 swap. I have a 4 inch Rough Country lift and I know I have to something to correct my driveshaft angle. I'm buying RC adjustable control arms to dial in the pinion angle better. Couldn't I just take my jeep down to a driveshaft shop and get them to make me a driveshaft that will work on my D35 and my next axle?

sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 07:57 AM   #2
IITYWTMWYBMAB

WF Supporting Member
::WF Administrator::
 
4Jeepn's Avatar
 
Join Date: Apr 2005
Location: Florence, KY
Posts: 10,141
Images: 5
Assuming the distance from the current axle and new axle are the same(or very close), yes you could use the same shaft assuming u-joints are the same at the axle end etc etc.. Do you have an sye or -t-case drop.. will you be getting as SYE?.. as that can change things.. lot of little factors to consider

__________________
79.96.85.00.01.97.00.97.93.97.95.94
CJ.XJ.CJ. TJ. TJ.ZJ. TJ.TJ. ZJ.ZJ.YJ. XJ
4Jeepn is offline   Quote Quick Reply
Old 06-11-2013, 08:03 AM   #3
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
I have a tcase drop
I wasn't planning on doing SYE, I don't have many driveline vibes
sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 09:30 AM   #4
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 5,565
Images: 11
If you are going to stick to the tc drop, why do you have to redo your drive shaft before your new axle? And what do you mean by "many"?
__________________
Dennis
Water Dog is online now   Quote Quick Reply
Old 06-11-2013, 09:49 AM   #5
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
That's what I was wondering. When I do my axle swap, shouldn't I just be able to change out the driveshaft if I have to?
I only have driveline vibes in 1st gear over 3K RPM
sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 09:51 AM   #6
Jeeper
 
Big Cole's Avatar
 
Join Date: Jan 2012
Location: Lafayette Hill, PA
Posts: 1,641
What is the point of installing a stronger rear axle for offroading purposes then leave the belly hanging artificially low? Sounds like a great opportunity for a tummy tuck.
Big Cole is offline   Quote Quick Reply
Old 06-11-2013, 10:50 AM   #7
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
If I add a body lift for a tummy tuck, Ill have a huge gap for 33's
sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 11:25 AM   #8
Wild Willys!

WF Supporting Member
 
All Terrain JK's Avatar
 
Join Date: Jan 2013
Location: MI
Posts: 1,568
Quote:
Originally Posted by sakicnut View Post
If I add a body lift for a tummy tuck, Ill have a huge gap for 33's
You don't need a body lift to do tummy tuck.

Click image for larger version

Name:	ForumRunner_20130611_121612.jpg
Views:	53
Size:	159.5 KB
ID:	260270

4" lift, 1" skid, 33" tires and no BL.
__________________
Mama's: '14 JKU Freedom Billet Silver, Trail Rated
Mine: '15 JK Willys Wheeler Billet Silver, Trail Ready!
Roads? Where we're going we don't need roads!
Frame off TJ restore project
All Terrain JK is online now   Quote Quick Reply
Old 06-11-2013, 11:28 AM   #9
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
You just take your t case drop off?
sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 11:38 AM   #10
Jeeper
 
Big Cole's Avatar
 
Join Date: Jan 2012
Location: Lafayette Hill, PA
Posts: 1,641
Yes. I installed a no body lift required aluminum skid from UCF. It is flat and a couple inches higher to the frame than stock. Don't forget the SYE, DC shaft, and rear track bar bracket
Big Cole is offline   Quote Quick Reply
Old 06-11-2013, 12:07 PM   #11
Wild Willys!

WF Supporting Member
 
All Terrain JK's Avatar
 
Join Date: Jan 2013
Location: MI
Posts: 1,568
Quote:
Originally Posted by Big Cole View Post
Yes. I installed a no body lift required aluminum skid from UCF. It is flat and a couple inches higher to the frame than stock. Don't forget the SYE, DC shaft, and rear track bar bracket
I'm using the UCF ultra high skid and lowpro trans mount. I had my stock mount on and still had 3/8" clearance t from the tub. I had to use the lp mount cause my ds would bind at droop.
__________________
Mama's: '14 JKU Freedom Billet Silver, Trail Rated
Mine: '15 JK Willys Wheeler Billet Silver, Trail Ready!
Roads? Where we're going we don't need roads!
Frame off TJ restore project
All Terrain JK is online now   Quote Quick Reply
Old 06-11-2013, 12:46 PM   #12
Jeeper
 
Socaltrailrider's Avatar
 
Join Date: Apr 2013
Location: SoCal
Posts: 691
Quote:
Originally Posted by All Terrain TJ View Post

You don't need a body lift to do tummy tuck.

4" lift, 1" skid, 33" tires and no BL.
I like how you did a tummy tuck without a body lift, I didn't think that was possible. Everywhere I read I see that a min of 1in body lift required for a tummy tuck. I'm definitely going to look into that for my Jeep
Socaltrailrider is offline   Quote Quick Reply
Old 06-11-2013, 12:53 PM   #13
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,253
Images: 2
Your drivetrain angle problem that causes vibrations that results from such a tall lift can't be cured by changing the rear pinion angle. The problem isn't caused by the pinion angle itself, the vibrations are caused by an excessive angle at the front & rear driveshaft u-joints. The u-joints are now working into such extreme angles that they vibrate. And you can't just live with such vibrations, they will eventually start causing problems for the u-joints, seals, and/or bearings. Not to mention that the rear pinion angle and t-case output shaft angle must remain parallel with the factory single-cardin (non-CV) driveshaft.

Short of installing a SYE kit & CV driveshaft, the only somewhat effective means of reducing those angles so the u-joints stop vibrating is with an extra-deep t-case drop (1" is seldom enough for a 4" suspension lift) or by combining a 1" t-case drop with a set of 1" taller motor mount lifts.
__________________
Gone wheeling, back late sunday...
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 06-11-2013, 02:24 PM   #14
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 488
So a motor mount lift might help those vibes Jerry?
sakicnut is offline   Quote Quick Reply
Old 06-11-2013, 10:05 PM   #15
Jeeper
 
Socaltrailrider's Avatar
 
Join Date: Apr 2013
Location: SoCal
Posts: 691
Quote:
Originally Posted by Big Cole View Post
Yes. I installed a no body lift required aluminum skid from UCF. It is flat and a couple inches higher to the frame than stock. Don't forget the SYE, DC shaft, and rear track bar bracket
What UCF skid plate did you go with?
1)No body lift required skid=1 1/2in clearance over stock
2)Original high clearance skid=2 1/2 clearance over stock
3)Ultra high clearance skid=3 1/2 clearance over stock
From my understanding after reading up on UCF website #1 and 2 require a body lift and may be some tub clearing
Socaltrailrider is offline   Quote Quick Reply
Old 06-11-2013, 10:08 PM   #16
Jeeper
 
Big Cole's Avatar
 
Join Date: Jan 2012
Location: Lafayette Hill, PA
Posts: 1,641
Quote:
Originally Posted by Socaltrailrider View Post

What UCF skid plate did you go with?
1)No body lift required skid=1 1/2in clearance over stock
2)Original high clearance skid=2 1/2 clearance over stock
3)Ultra high clearance skid=3 1/2 clearance over stock
From my understanding after reading up on UCF website #1 and 2 require a body lift and may be some tub clearing
I went with option #1. Skid plate fit fine and required no tub clearancing on my 99 sahara. Only took about 30 minutes to install by myself.
Big Cole is offline   Quote Quick Reply
Old 06-11-2013, 10:10 PM   #17
Jeeper
 
Socaltrailrider's Avatar
 
Join Date: Apr 2013
Location: SoCal
Posts: 691
Quote:
Originally Posted by All Terrain TJ View Post

I'm using the UCF ultra high skid and lowpro trans mount. I had my stock mount on and still had 3/8" clearance t from the tub. I had to use the lp mount cause my ds would bind at droop.
Regarding the tummy tuck you specified you are using the "ultra high" clearance skid and low pro trans mount...My question is did you have to make some tub clearance or was it a simple low pro trans mount install with no other requirements?
Socaltrailrider is offline   Quote Quick Reply
Old 06-12-2013, 05:31 AM   #18
Wild Willys!

WF Supporting Member
 
All Terrain JK's Avatar
 
Join Date: Jan 2013
Location: MI
Posts: 1,568
Quote:
Originally Posted by Socaltrailrider View Post

Regarding the tummy tuck you specified you are using the "ultra high" clearance skid and low pro trans mount...My question is did you have to make some tub clearance or was it a simple low pro trans mount install with no other requirements?
The only mod I had to make on my Jeep was to the exhaust. I cleared the tub even with the stock trans mount. Keep in mind mine is a 98. The stock and UCF skid are different for the 03-06s. I did have to substantialy modify the UCF skid. It did not directly bolt up to my TJ. Here is my build thread if you want to read the specific details.
http://www.wranglerforum.com/f5/marc...-221479-2.html
Now that it is installed I am extremely happy with the skid.

__________________
Mama's: '14 JKU Freedom Billet Silver, Trail Rated
Mine: '15 JK Willys Wheeler Billet Silver, Trail Ready!
Roads? Where we're going we don't need roads!
Frame off TJ restore project
All Terrain JK is online now   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
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

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 Off
Refbacks are Off




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 08:53 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC