2013 JK Front Lower Control Arms - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today


Like Tree8Likes
  • 1 Post By TightJKU
  • 1 Post By chitown35
  • 1 Post By Rock Krawler Sus.
  • 2 Post By chitown35
  • 2 Post By Pressurized
  • 1 Post By GuzziMoto
Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-12-2018, 08:08 AM
Thread Starter
  #1
Jeeper
 
Join Date: Aug 2015
Posts: 36
2013 JK Front Lower Control Arms

I have/had a RC 3.5" lift with 315's on my wife's jeep that never goes off road and it handles like crap, started about a year after the lift was put on.
Wonders all over and hit the brakes hard, hold on you have no idea were it's going.

Since I have replaced the coil springs with Metalclok, removed all the track bar brackets and bars and replace with JKS longer bars.

Now I'm doing FRONT LOWER CONTROL ARMS. Don't want to spend a lot but don't want to waste my money on junk. What brand should I get? Think JKS.

Thanks

2000f150sas is offline   Quote
Old 06-12-2018, 08:13 AM   #2
Jeeper
 
Join Date: Aug 2017
Posts: 68
Teraflex. I ditched Rough Country after 6 months due to the terrible ride.

Sent from my Pixel XL using Tapatalk
hrd rck likes this.

TightJKU is offline   Quote
Old 06-12-2018, 08:36 AM   #3
Jeeper
 
chitown35's Avatar
 
Join Date: Apr 2015
Location: Aurora, IL
Posts: 1,410
I'd go Metalcloak. Great parts and amazing customer service. Knowledgeable staff and community.
jawest12 likes this.
__________________
chitown35's BYMF Build Thread (2015 Unlimited Sport S Baja Yellow)
Auto / 4.56 Gears / ARB Front, Auburn Ected Rear Locker & LSD / G2 Core 44 35 Spline Axles / Alpine 9-Speakers & Sub / MC 3.5" w 6pak shocks / 37" KM3s on Method 105 Beadlocks
chitown35 is offline   Quote
Sponsored Links
Advertisement
 
Old 06-12-2018, 12:39 PM
Thread Starter
  #4
Jeeper
 
Join Date: Aug 2015
Posts: 36
Thanks but can't spend that kind of money. JKS is not any good?
2000f150sas is offline   Quote
Old 06-12-2018, 01:26 PM   #5
Jeeper
 
chitown35's Avatar
 
Join Date: Apr 2015
Location: Aurora, IL
Posts: 1,410
No experience personally with JKS, they look fine. Stock style bushing though, and the only ones they have cheaper than metalcloak are fixed length. So, I guess it depends on if you need to adjust the length, or what your upgrade plans are for later.
__________________
chitown35's BYMF Build Thread (2015 Unlimited Sport S Baja Yellow)
Auto / 4.56 Gears / ARB Front, Auburn Ected Rear Locker & LSD / G2 Core 44 35 Spline Axles / Alpine 9-Speakers & Sub / MC 3.5" w 6pak shocks / 37" KM3s on Method 105 Beadlocks
chitown35 is offline   Quote
Old 06-12-2018, 01:37 PM
Thread Starter
  #6
Jeeper
 
Join Date: Aug 2015
Posts: 36
No future lift plans, what she has is it.

JKS - works with 2-4.5" lift - $214
or
Rock Krawler with work with lift - $299

your thoughts?

Thanks
2000f150sas is offline   Quote
Old 06-12-2018, 01:46 PM   #7
Jeeper
 
chitown35's Avatar
 
Join Date: Apr 2015
Location: Aurora, IL
Posts: 1,410
With all the issues I've read about people having (bad designs and bad customer service), I'd personally stay far away from Rock Krawler.
__________________
chitown35's BYMF Build Thread (2015 Unlimited Sport S Baja Yellow)
Auto / 4.56 Gears / ARB Front, Auburn Ected Rear Locker & LSD / G2 Core 44 35 Spline Axles / Alpine 9-Speakers & Sub / MC 3.5" w 6pak shocks / 37" KM3s on Method 105 Beadlocks
chitown35 is offline   Quote
Old 06-12-2018, 02:26 PM
Thread Starter
  #8
Jeeper
 
Join Date: Aug 2015
Posts: 36
Quote:
Originally Posted by chitown35 View Post
With all the issues I've read about people having (bad designs and bad customer service), I'd personally stay far away from Rock Krawler.
10-4, thanks. that's the kind of feedback I'm looking for.

John
2000f150sas is offline   Quote
Old 06-12-2018, 02:43 PM   #9
Jeeper
 
Hi-Lander's Avatar
 
Join Date: Oct 2016
Location: Athens GA
Posts: 211
I just installed the JKS Jlink fixed lowers on my '17 last week.
I have a 2,5" lift. JKS made a difference over the stock arms with the added caster. No longer wanders all over the lane.
They are very heavy compared to stock but were easy to install, About 40 Minutes with air tools.

Seems most with adjustable arms set them around 23" which is right where the JKS fixed are at. I was torn between the fixed and adjustable, but since mine is a 80% pavement 20% Forestry Road fixed worked fine for me.

The one thing I did noticed the most was how much smoother is was over pavement/bumps expansion joints.
Hi-Lander is offline   Quote
Old 06-12-2018, 02:48 PM   #10
Jeeper
 
Pushrod's Avatar
 
Join Date: Feb 2011
Location: Hot Springs, Arkansas
Posts: 413
Zero problems with my 3.5 Rock Krawler system once I got everything properly aligned and worn out steering components replaced, three happy years driving it with some pretty hard core off road. The stock steering components have a fairly short life after putting on 35 x 12.50s. I have replaced every steering component with good after market parts, with the exception of the pitman arm.
__________________
Pushrod
2010 Rescue Green Rubicon JKU

If you ever get to thinking that you're a person of great influence, try ordering someone else's dog around.
Pushrod is offline   Quote
Old 06-12-2018, 03:01 PM   #11
Jeeper
 
Rock Krawler Sus.'s Avatar
 
Join Date: Nov 2013
Posts: 452
For adjustable arms, check out our X factor series arms:

JK High Clearance Rear Lower Control Arms

Adam C
mommymallcrawler likes this.
Rock Krawler Sus. is offline   Quote
Old 06-13-2018, 06:16 AM
Thread Starter
  #12
Jeeper
 
Join Date: Aug 2015
Posts: 36
Quote:
Originally Posted by Hi-Lander View Post
I just installed the JKS Jlink fixed lowers on my '17 last week.
I have a 2,5" lift. JKS made a difference over the stock arms with the added caster. No longer wanders all over the lane.
They are very heavy compared to stock but were easy to install, About 40 Minutes with air tools.

Seems most with adjustable arms set them around 23" which is right where the JKS fixed are at. I was torn between the fixed and adjustable, but since mine is a 80% pavement 20% Forestry Road fixed worked fine for me.

The one thing I did noticed the most was how much smoother is was over pavement/bumps expansion joints.
Thanks for the info but I have a 3.5" lift so I guess I will need the adjustable arms? We never wheel the jeep except for two weeks a year at the beach. I'll need to measure the RC arms that came in the lift kit that I want to replace before ordering. John
2000f150sas is offline   Quote
Old 06-13-2018, 08:09 PM   #13
Jeeper
 
Join Date: Jun 2014
Location: San Diego, CA
Posts: 809
With that much lift, you're never going to get your castor right without adjustable. I replaced my fixed length TF arms with adjustable RK arms, and my Jeep guy got the caster dialed, and it tracks great now. I can drive it with two fingers on the wheel if I wanted.

Yeah, everything wears out faster with heavy tires and wheels. All the steering joints start wearing, ball joints...really, all you can do is make sure everything is tight, and if there is play, replace with something better. Steersmarts, Dynatrac, etc.
spag is offline   Quote
Old 06-13-2018, 09:52 PM   #14
I drive Papa Smurf

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Pressurized's Avatar
 
Join Date: Jan 2014
Location: Gilbert, AZ
Posts: 14,334
Best to go adjustable in your situation. I have a solution for you... The Core4x4 arms from @AOR . Allen from Allen's Off-road has great service and great pricing. These arms use the very popular Johnny Joint on one end and factory Clevite in the other.

https://www.allensoffroad.com/suspen...ontrol-Arm-Set

Set them to 23-1/8 and enjoy.
__________________
2006 LJ Rubicon - Solar Yellow - Very Stock'ish - The Press Casual LJ-R build
2012 JKU Sahara - Pro Comp LED Headlights - PRS Audio mod- SWS - GraBars - Bestop Cargo Cover
- Mopar 2" Frankenlift - Teraflex Falcon Shocks - RE TB/Brackets - JKS mount/Bilstein stabilizer -
Rugged Ridge XHD
bumper - Yukon Gears - G2 Diff Covers - Pro Comp 8186 - Milestar Patagonia 35's - Teraflex BRK
- TORQ Locker - 1310 Driveshaft - PowerTrax Grip Pro - Full Core 4x4 Control Arms and Track Bars
Pressurized is offline   Quote
Old 06-14-2018, 06:12 AM
Thread Starter
  #15
Jeeper
 
Join Date: Aug 2015
Posts: 36
Quote:
Originally Posted by Pressurized View Post
Best to go adjustable in your situation. I have a solution for you... The Core4x4 arms from @AOR . Allen from Allen's Off-road has great service and great pricing. These arms use the very popular Johnny Joint on one end and factory Clevite in the other.

https://www.allensoffroad.com/suspen...ontrol-Arm-Set

Set them to 23-1/8 and enjoy.
Thanks for the info and link. But how do the adjustable lower control arms effect cast on the front? I thought it would only effect the pinion angle. Unless caster has to do with upper and lower ball joint alignment?
Thanks for you help.
2000f150sas is offline   Quote
Old 06-14-2018, 07:36 AM   #16
Jeeper
 
chitown35's Avatar
 
Join Date: Apr 2015
Location: Aurora, IL
Posts: 1,410
Caster and pinion angle are related. The more you have of one, the less you have of another. The stock jk front axle has 6 degrees of separation. Initially set at 4.2 degrees caster, 1.8 pinion angle.
Pressurized and drrags like this.
__________________
chitown35's BYMF Build Thread (2015 Unlimited Sport S Baja Yellow)
Auto / 4.56 Gears / ARB Front, Auburn Ected Rear Locker & LSD / G2 Core 44 35 Spline Axles / Alpine 9-Speakers & Sub / MC 3.5" w 6pak shocks / 37" KM3s on Method 105 Beadlocks
chitown35 is offline   Quote
Old 06-14-2018, 09:31 AM   #17
I drive Papa Smurf

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Pressurized's Avatar
 
Join Date: Jan 2014
Location: Gilbert, AZ
Posts: 14,334
Quote:
Originally Posted by 2000f150sas View Post
Thanks for the info and link. But how do the adjustable lower control arms effect cast on the front? I thought it would only effect the pinion angle. Unless caster has to do with upper and lower ball joint alignment?
Thanks for you help.
Lengthening the front lower control arms will lean the kingpin angle back. On our Jeeps, the kingpin angle is the line that runs through our ball joints. The kingpin angle is how we derive our caster measurement.



As above, increasing caster does have a direct effect on pinion angle. But unless you are going crazy on caster, it's not all that common to end up with a bad pinion angle.
chitown35 and drrags like this.
__________________
2006 LJ Rubicon - Solar Yellow - Very Stock'ish - The Press Casual LJ-R build
2012 JKU Sahara - Pro Comp LED Headlights - PRS Audio mod- SWS - GraBars - Bestop Cargo Cover
- Mopar 2" Frankenlift - Teraflex Falcon Shocks - RE TB/Brackets - JKS mount/Bilstein stabilizer -
Rugged Ridge XHD
bumper - Yukon Gears - G2 Diff Covers - Pro Comp 8186 - Milestar Patagonia 35's - Teraflex BRK
- TORQ Locker - 1310 Driveshaft - PowerTrax Grip Pro - Full Core 4x4 Control Arms and Track Bars
Pressurized is offline   Quote
Old 06-14-2018, 01:10 PM
Thread Starter
  #18
Jeeper
 
Join Date: Aug 2015
Posts: 36
Quote:
Originally Posted by Pressurized View Post
Lengthening the front lower control arms will lean the kingpin angle back. On our Jeeps, the kingpin angle is the line that runs through our ball joints. The kingpin angle is how we derive our caster measurement.



As above, increasing caster does have a direct effect on pinion angle. But unless you are going crazy on caster, it's not all that common to end up with a bad pinion angle.
10-4, thanks. I ordered the lower arms this morning.
2000f150sas is offline   Quote
Old 06-22-2018, 07:09 AM
Thread Starter
  #19
Jeeper
 
Join Date: Aug 2015
Posts: 36
Lower control arm direction

I know someone will give me flak on this question but here it goes. I just received my Allen’s Offroad Lower Control Arms. One end has the bushing and the other has the Johnny Joint, which end goes on the rear?
It may be self-explaining once I get under the jeep but just want to be sure before Sunday.
Thanks
2000f150sas is offline   Quote
Old 06-22-2018, 10:00 AM   #20
QUEEN OF MALLCRAWLERS

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
mommymallcrawler's Avatar
 
Join Date: Sep 2013
Location: Scottsdale, Arizona
Posts: 8,158
Quote:
Originally Posted by chitown35 View Post
With all the issues I've read about people having (bad designs and bad customer service), I'd personally stay far away from Rock Krawler.
I have had zero issues with Rock Krawler.
__________________
2014 JKR Granite Crystal, 5.13 Auto: RK X Factor 2.5 Inch Lift, Artec Front and Rear Truss, Artec Rear LCA Mounts/Skids, Poison Spyder HD Crossmember, Rock Hard Gas/TC/Evap/Oil Skids, Rough Country Diff Sliders, Nitto Trail Grapplers 37x12.5x17, Pro Comp 97 Series Wheels, Synergy Weld On Rear Trackbar Bracket, PSC Hydroassist, T6 Aluminum Tie Rod, G2 Gold Chromoly Axle Shaft/RCV front axle shaft, Dynatrac Ball Joints, 1310 driveshafts, Artec Rear Upper CA Mounts, Warn VR8000.
mommymallcrawler is offline   Quote
Old 06-22-2018, 11:26 AM   #21
Moderator

5-Year WF Supporting Member
WF Lifetime Member
::WF Moderator::
 
Join Date: Mar 2016
Location: Clear Spring, Md
Posts: 4,403
Quote:
Originally Posted by 2000f150sas View Post
I have/had a RC 3.5" lift with 315's on my wife's jeep that never goes off road and it handles like crap, started about a year after the lift was put on.
Wonders all over and hit the brakes hard, hold on you have no idea were it's going.

Since I have replaced the coil springs with Metalclok, removed all the track bar brackets and bars and replace with JKS longer bars.

Now I'm doing FRONT LOWER CONTROL ARMS. Don't want to spend a lot but don't want to waste my money on junk. What brand should I get? Think JKS.

Thanks
Wait, it was fine at first after the lift and then a year later it started handling poorly?
Unless something was changed just before it started handling poorly that seems to indicate that you have a problem. Something may be worn out, like ball joints.
I do think that adjustable lower arms are a great idea for any lift, and especially a 3.5" lift. But if it was fine at first after the lift was installed adjustable arms don't sound like the answer to your current woes.
And for me, my favorite adjustable arms are TeraFlex Alpine arms. They are stout and easy to adjust.
chitown35 likes this.
GuzziMoto is online now   Quote
Old 06-22-2018, 12:09 PM   #22
I drive Papa Smurf

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Pressurized's Avatar
 
Join Date: Jan 2014
Location: Gilbert, AZ
Posts: 14,334
Quote:
Originally Posted by 2000f150sas View Post
I know someone will give me flak on this question but here it goes. I just received my Allen’s Offroad Lower Control Arms. One end has the bushing and the other has the Johnny Joint, which end goes on the rear?
It may be self-explaining once I get under the jeep but just want to be sure before Sunday.
Thanks
There is a bend in the arm... That bend typically goes to the inside and front for tire clearance. This should also be evident when you look at the stock arms.
__________________
2006 LJ Rubicon - Solar Yellow - Very Stock'ish - The Press Casual LJ-R build
2012 JKU Sahara - Pro Comp LED Headlights - PRS Audio mod- SWS - GraBars - Bestop Cargo Cover
- Mopar 2" Frankenlift - Teraflex Falcon Shocks - RE TB/Brackets - JKS mount/Bilstein stabilizer -
Rugged Ridge XHD
bumper - Yukon Gears - G2 Diff Covers - Pro Comp 8186 - Milestar Patagonia 35's - Teraflex BRK
- TORQ Locker - 1310 Driveshaft - PowerTrax Grip Pro - Full Core 4x4 Control Arms and Track Bars
Pressurized is offline   Quote
Old 06-22-2018, 01:05 PM   #23
Jeeper
 
chitown35's Avatar
 
Join Date: Apr 2015
Location: Aurora, IL
Posts: 1,410
Quote:
Originally Posted by GuzziMoto View Post
Wait, it was fine at first after the lift and then a year later it started handling poorly?
Unless something was changed just before it started handling poorly that seems to indicate that you have a problem. Something may be worn out, like ball joints.
I do think that adjustable lower arms are a great idea for any lift, and especially a 3.5" lift. But if it was fine at first after the lift was installed adjustable arms don't sound like the answer to your current woes.
And for me, my favorite adjustable arms are TeraFlex Alpine arms. They are stout and easy to adjust.
Good catch.

__________________
chitown35's BYMF Build Thread (2015 Unlimited Sport S Baja Yellow)
Auto / 4.56 Gears / ARB Front, Auburn Ected Rear Locker & LSD / G2 Core 44 35 Spline Axles / Alpine 9-Speakers & Sub / MC 3.5" w 6pak shocks / 37" KM3s on Method 105 Beadlocks
chitown35 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






All times are GMT -5. The time now is 04:52 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.