Driveline angle - Jeep Wrangler Forum

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

Join Wrangler Forum Today



Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 12-30-2012, 02:58 PM   #1
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Driveline angle

Does this angle look ok or do the shims the PO put in the rear axle look too steep? I am having vibration from rear and going to replace the u joints, but I am thinking that the angle isn't too good on the joints.
Attached Thumbnails
Click image for larger version

Name:	image-3117058422.jpg
Views:	76
Size:	120.9 KB
ID:	192360  
JoeyAKAFishboy is offline   Quote
Old 12-30-2012, 02:59 PM   #2
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
I am aware my rear pinion seal is leaking a bit too. Haha.

JoeyAKAFishboy is offline   Quote
Old 12-30-2012, 03:52 PM   #4
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 572
sakicnut is on a distinguished road
Do you have a lift on your jeep?
sakicnut is offline   Quote
Old 12-30-2012, 05:55 PM   #5
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Yeah. The PO also installed the lift. No body. Looks like about 3 or 4" using shackles in front and possibly slightly larger leaf springs. You think it could of been correct before the leaf springs may have sagged a bit?
JoeyAKAFishboy is offline   Quote
Old 12-30-2012, 05:56 PM   #6
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
If you look in the picture you can see one of the springs. They look almost stock?
JoeyAKAFishboy is offline   Quote
Old 12-30-2012, 06:00 PM   #7
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Here's some photos. Your guess to the lift is as good as mine. The PO gave very little info on the lift. It has 32"x10.5" tires for a size reference. Perhaps a smaller angle shim in the rear axle might lower the angle?
Attached Thumbnails
Click image for larger version

Name:	image-709231532.jpg
Views:	54
Size:	169.4 KB
ID:	192418   Click image for larger version

Name:	image-527542071.jpg
Views:	63
Size:	195.8 KB
ID:	192419  

JoeyAKAFishboy is offline   Quote
Old 12-30-2012, 06:13 PM   #8
Jeeper
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,939
harleydragon is on a distinguished road
Quote:
Originally Posted by kjeeper10 View Post
To high it looks.
x2..shim under the back of the rear spring perch to bring it in line
harleydragon is offline   Quote
Old 12-30-2012, 07:27 PM   #9
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 572
sakicnut is on a distinguished road
If it has a 4 inch suspension lift you will have to get SYE/CV driveshaft to eliminate the drive vibes.
sakicnut is offline   Quote
Old 12-30-2012, 07:28 PM   #10
Jeeper
 
sakicnut's Avatar
 
Join Date: Mar 2012
Location: Lebanon,TN
Posts: 572
sakicnut is on a distinguished road
But trying shimming it first and see if it fixes it.
sakicnut is offline   Quote
Old 12-30-2012, 08:17 PM   #11
Jeeper
 
sledn8r's Avatar
 
Join Date: Aug 2012
Location: Granby, CO.
Posts: 135
sledn8r is on a distinguished road
Too big of shims in for now.
sledn8r is offline   Quote
Old 12-30-2012, 10:42 PM   #12
Supporting Member

5-Year WF Supporting Member
 
jokerchief462's Avatar
 
Join Date: Apr 2012
Location: North Las Vegas
Posts: 10,090
jokerchief462 is on a distinguished road
Standard shim from the factory for Rough Country springs I was told were 6 degrees. So on mine when it looked like that I ordered the 4 degree shims and waiting on the Brown Santa to bring this week.

Your pinion angle should be 2-4 dgrees lower than the shaft angle which helps to account for axle wrap.

Go to Tom Woods Shaft site home page right center 3/4 way down the page grey banner technical information and read about it all there. It is great and will leave you with a totally new perspective on driveline angles for these short shafted YJs.

Tom Wood's Custom Drive Shafts - Tom Woods Custom Drive Shafts Custom Driveshafts Specialist
jokerchief462 is offline   Quote
Old 12-31-2012, 12:23 AM   #13
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Thanks for the advice. Let me know how the 4 degree shims turn out compared to the 6 degree if you don't mind!
JoeyAKAFishboy is offline   Quote
Old 12-31-2012, 12:26 AM   #14
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Also is there any chance the 6 degrees are in still? Curious how they look compared to the 4 when you do that. Nice before and after would be a holy grail.
JoeyAKAFishboy is offline   Quote
Old 12-31-2012, 01:55 AM   #15
Newb
 
mrandall2003's Avatar
 
Join Date: Sep 2011
Posts: 6
mrandall2003 is on a distinguished road
I have a 2004 rubicon. I just changed both axle joints. We took off front shaft to check all joints. We noticed that the shaft was hard to get off. Like the shaft was too long. When installed, slip joint is completely compressed. Is this normal?
mrandall2003 is offline   Quote
Old 12-31-2012, 08:26 AM   #16
Jeeper
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,939
harleydragon is on a distinguished road
Quote:
Originally Posted by mrandall2003 View Post
I have a 2004 rubicon. I just changed both axle joints. We took off front shaft to check all joints. We noticed that the shaft was hard to get off. Like the shaft was too long. When installed, slip joint is completely compressed. Is this normal?
no..it has to be able to compress when you hit bumps,etc. or it will bust the transfer case
harleydragon is offline   Quote
Old 12-31-2012, 08:31 AM   #17
Jeeper
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,939
harleydragon is on a distinguished road
Quote:
Originally Posted by sakicnut View Post
If it has a 4 inch suspension lift you will have to get SYE/CV driveshaft to eliminate the drive vibes.
not necessarily..one of my yj's has a spring over and has no vibration with the slip yoke..you just have to get the angle right
harleydragon is offline   Quote
Old 01-02-2013, 06:29 PM   #18
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Well today i got around to the yj and sure enough the u joint was shot in the rear. Check out the wear in the picture. Also it was the original. After 130k miles and 18+years I do believe it was due for retirement.
Attached Thumbnails
Click image for larger version

Name:	image-3252633417.jpg
Views:	51
Size:	122.8 KB
ID:	193767  
JoeyAKAFishboy is offline   Quote
Old 01-02-2013, 06:31 PM   #19
Jeeper
 
JoeyAKAFishboy's Avatar
 
Join Date: Dec 2012
Location: Central, NJ
Posts: 23
JoeyAKAFishboy is on a distinguished road
Also keep in mind that the joint felt fine to the hand and only after removal was this damage visible. So to anyone with driveline vibes who just hand checked their joints it is best to pull it and look. Here's the new sexy grease-able one. Also take your old one to the auto parts store as the u joint was NOT the one specified in the computer.
Attached Thumbnails
Click image for larger version

Name:	image-1249394010.jpg
Views:	50
Size:	67.4 KB
ID:	193768  
JoeyAKAFishboy is offline   Quote
Old 01-03-2013, 07:17 AM   #20
Jeeper
 
ciamex's Avatar
 
Join Date: Nov 2011
Location: Glendale AZ
Posts: 32
ciamex is on a distinguished road
wow... Tom Wood is a GOD... everyone should take the time to read his website... twice.. so much good information...
ciamex is offline   Quote
Old 01-03-2013, 08:42 AM   #21
Jeeper
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,939
harleydragon is on a distinguished road
Quote:
Originally Posted by ciamex View Post
wow... Tom Wood is a GOD... everyone should take the time to read his website... twice.. so much good information...
I have his driveshafts in my tj...they are expensive but are the best I have ever owned
harleydragon is offline   Quote
Old 01-03-2013, 01:01 PM   #22
Newb
 
mrandall2003's Avatar
 
Join Date: Sep 2011
Posts: 6
mrandall2003 is on a distinguished road
Quote:
Originally Posted by harleydragon
no..it has to be able to compress when you hit bumps,etc. or it will bust the transfer case
Hey thanks for the info. It confirmed what I was already thinking. I shortened the shaft by 1 inch.
I haven't had it off road since I shortened it. But I'm sure it'll make a big difference.
mrandall2003 is offline   Quote
Old 01-03-2013, 01:34 PM   #23
Supporting Member

5-Year WF Supporting Member
 
jokerchief462's Avatar
 
Join Date: Apr 2012
Location: North Las Vegas
Posts: 10,090
jokerchief462 is on a distinguished road
4 degree shims arrive tonite from Brown Santa so will post up before and after driveline angle shots hope this is the last of the fixes for my vibes.

jokerchief462 is offline   Quote
Reply

Thread Tools

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 Off
Refbacks are Off




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 10:33 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

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
« Back

Enter your email address:

Delivered by FeedBurner