bowed coil springs - Jeep Cherokee Forum
Jeep Cherokee Forum


bowed coil springs

Reply
 
 
 
Thread Tools Search this Thread
Old 01-10-2017, 10:12 PM   #1
Senior Member
Thread Starter
 
70hemicuda's Avatar
 
Join Date: Feb 2012
Location: newjersey
Posts: 564

View 70hemicuda's Photo Album My Photos
Default bowed coil springs

Putting in my diff cover today and noticed my coil springs are bowed like this "(" dont have a pic sorry. I have drop brackets and everything seems fine down there. just the bowed springs. And i think my pinion angle is pointing a bit up as well. Do i just need adj lower control arms to fix the bowing and angle?
70hemicuda is offline   Reply With Quote
Old 01-10-2017, 11:29 PM   #2
CF Veteran
 
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 1,457

View Martlor13's Photo Album My Photos
Default

Upper control arms fix pinion angle
Martlor13 is offline   Reply With Quote
Old 01-10-2017, 11:36 PM   #3
Senior Member
 
LACK's Avatar
 
Join Date: Oct 2016
Location: CA
Posts: 632

View LACK's Photo Album My Photos
Default

Need to know more about your suspension setup.
LACK is online now   Reply With Quote
Old 01-11-2017, 12:31 AM   #4
Senior Member
Thread Starter
 
70hemicuda's Avatar
 
Join Date: Feb 2012
Location: newjersey
Posts: 564

View 70hemicuda's Photo Album My Photos
Default

okay. its a 2000 cherokee lp30. lifted 4.5 inches in the front and 5 in the rear. i got control arm drop brackets in with stock arms. the front axle is rotated so that the diff oover is looking down and the pinion points up in the rear. the springs are bowed as well. I was wondering if the fix for that would be adj lower arms as i think to fix this i would have to lengthen the bottom arms to allow the axle to move forward a bit so flatten out. Just making sure my reasoning is correct.
70hemicuda is offline   Reply With Quote
Old 01-11-2017, 12:59 AM   #5
Senior Member
 
LACK's Avatar
 
Join Date: Oct 2016
Location: CA
Posts: 632

View LACK's Photo Album My Photos
Default

Stock arms on that much lift will definitely pull the axle rearward and mess with your pinion angle. To correct the issue i'd get a set of adjustable upper and lower control arms. The lowers will allow you to push the axle forward and the uppers to adjust to the proper pinion angle.
LACK is online now   Reply With Quote
Old 01-11-2017, 01:09 AM   #6
Senior Member
Thread Starter
 
70hemicuda's Avatar
 
Join Date: Feb 2012
Location: newjersey
Posts: 564

View 70hemicuda's Photo Album My Photos
Default

All four arms is a no go financial wise. Would lowers be better first?
70hemicuda is offline   Reply With Quote
Old 01-11-2017, 01:15 AM   #7
CF Veteran
 
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 1,457

View Martlor13's Photo Album My Photos
Default

Quote:
Originally Posted by 70hemicuda View Post
All four arms is a no go financial wise. Would lowers be better first?
should have saved up before deciding to lift in order to do things properly. Look where skimping gets you haha...have an sye? I hope so
Martlor13 is offline   Reply With Quote
Old 01-11-2017, 01:35 AM   #8
Senior Member
 
LACK's Avatar
 
Join Date: Oct 2016
Location: CA
Posts: 632

View LACK's Photo Album My Photos
Default

Quote:
Originally Posted by 70hemicuda View Post
All four arms is a no go financial wise. Would lowers be better first?
Yes. Drop brackets help to get the lower geometry closer to stock but adjustable lowers would help you get the axle back where it needs to be.
LACK is online now   Reply With Quote
Old 01-11-2017, 09:47 AM   #9
Seasoned Member
 
Constantine's Avatar
 
Join Date: Nov 2015
Location: North Louisiana
Posts: 318

View Constantine's Photo Album My Photos
Default

Is your lower control control arm adjustment all the way forward?
CAD brackets allow for adjustablility just as the stock LCA mount does, as long as the adjustment parts were re installed into the bracket.
I do however agree that you should start with adjustable lowers for strength if nothing else.
Good information for when you get to set your castor:
http://go.jeep-xj.info/HowtoAlignment.htm
Constantine is offline   Reply With Quote
Old 01-11-2017, 10:01 AM   #10
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 46,168

View freegdr's Photo Album My Photos
Default

Correct fix all adjustable arms.
freegdr is offline   Reply With Quote
Old 01-11-2017, 10:40 AM   #11
CF Veteran
 
Fred/N0AZZ's Avatar
 
Join Date: Jul 2013
Location: Monett, MO.
Posts: 7,311

View Fred/N0AZZ's Photo Album My Photos
Default

You need both Upper and Lower adj. CA's with your setup, I know my 4 1/2" lift required them.
Fred/N0AZZ is offline   Reply With Quote
Old 01-11-2017, 04:07 PM   #12
Junior Member
 
Join Date: Apr 2016
Location: Maple Heights, Ohio
Posts: 91

View MWMahoneyJr's Photo Album My Photos
Default

Quote:
Originally Posted by Martlor13 View Post
should have saved up before deciding to lift in order to do things properly. Look where skimping gets you haha...have an sye? I hope so
Two unhelpful responses in the same thread. Nice.
MWMahoneyJr is online now   Reply With Quote
Old 01-11-2017, 04:55 PM   #13
CF Veteran
 
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 1,457

View Martlor13's Photo Album My Photos
Default

Quote:
Originally Posted by MWMahoneyJr View Post
Two unhelpful responses in the same thread. Nice.
How are they unhelpful? The first one corrected the op in his assumption that the LCA corrected pinion angle and the second one helps him by stating things should be done properly in order to avoid issues. Seems pretty helpful to me. What did you contribute haha.
Martlor13 is offline   Reply With Quote
Old 01-11-2017, 08:28 PM   #14
Seasoned Member
 
Join Date: Apr 2016
Location: Virginia Beach, VA
Posts: 495

View bad_idea's Photo Album My Photos
Default

How in the hell would the upper arms solely be responsible for setting the pinion angle? The caster is adjusted by shimming the LCAs from the factory. The caster and the pinion angle are directly related, therefore the logic would tell me the pinion angle is adjusted by the LCAs from the factory.

I have 5" of lift with CAD brackets. I installed fixed length LCAs at 16 1/4" (stock are 15.75) and then shimmed the LCAs 3/8". That put my caster at a decent degree that drives nice. Still running the stock UCAs. Drive this thing to work every day and it handles quite well. Springs are straight up and down. 4WD works great at 40 mphs or so. Haven't had a reason to drive faster in 4WD. In 2WD it runs at 80 smooth with no vibes.
bad_idea is offline   Reply With Quote
Old 01-11-2017, 08:58 PM   #15
Seasoned Member
 
Constantine's Avatar
 
Join Date: Nov 2015
Location: North Louisiana
Posts: 318

View Constantine's Photo Album My Photos
Default

Quote:
Originally Posted by bad_idea View Post
How in the hell would the upper arms solely be responsible for setting the pinion angle? The caster is adjusted by shimming the LCAs from the factory. The caster and the pinion angle are directly related, therefore the logic would tell me the pinion angle is adjusted by the LCAs from the factory.

I have 5" of lift with CAD brackets. I installed fixed length LCAs at 16 1/4" (stock are 15.75) and then shimmed the LCAs 3/8". That put my caster at a decent degree that drives nice. Still running the stock UCAs. Drive this thing to work every day and it handles quite well. Springs are straight up and down. 4WD works great at 40 mphs or so. Haven't had a reason to drive faster in 4WD. In 2WD it runs at 80 smooth with no vibes.
Perhaps you and I are the only two that realize this.
I also think that everyone overlooked that he's running CAD brackets.
Hell most UCA'S are too long for a CAD setup around the PO's height.
Constantine is offline   Reply With Quote
 
 
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Refbacks are Off



All times are GMT -5. The time now is 12:09 PM.