Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Suspension Modifications

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 08-14-2014, 01:43 PM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
'04 Columbia Ed Suspension refresh

I have been doing some research into a suspension refresh on my WJ. It is currently showing 113k miles and it feels loose. I have done the following repairs since I purchased it in May of 2012 with 78K miles on the odo.
  • Bilstein 4600 shocks
  • Cooper Discoverer AT3 tires - 255/65R17
  • Moog Trailboss Steering Stabilizer

All of these mods improved the feel of the steering, handling, and drivability but the Jeep still feels sloppy. I have been reading and researching for the past year and have come to believe that most of the slop I am experiencing is from the the bushings in the front lower and rear lower control arms. (I have noticed that if I catch a railroad crossing just right I get a clunk in the front end that can be duplicated.) I am also replacing the rear upper rear link on the rear A-arm as it is problematic on the WJ.

So here is what I have found out when it comes to lower control arms. There are several choices available out there. They include:
  • Factory Mopar arm replacement (Rear for $160/side retail, Front for $170/side retail, I can get them for cost)
  • Mopar bushing replacement in the factory arms (4 @ $35/bushing)
  • Aftermarket replacement arms (Moog fronts for $37/side RK640773 and rears for $59/side from Rockauto and there are cheaper options I will not consider)
  • Offroad style adjustable arms from Ebay ($170 for front and $150 for rear)

After a fair amount of conversation with my dad who has run a service station for 25 years the Moog pieces are my choice. Swap out the factory pieces and swap in the Moog pieces to minimize down time. This will keep my WJ on the road without much interruption. If the Moog pieces don't last I will press new Mopar bushings into the factory arms. I am fortunate that my WJ spent the first 8 years of its life in Florida and Georgia so it is very clean on the underside.

I am also going to upgrade to UpCountry Springs and replace the spring isolators while I have it apart as my factory coils have settled over time.

If you have any questions please ask - I hope that others can learn from my experience and reading.

I will update the thread as parts arrive.
__________________

__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #2  
Old 08-19-2014, 02:56 PM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

Did some more digging and it seems that the Moog rear arms are not available anywhere. Dad did some digging and the Moog fronts were not available through his supplier list. Contacted Kolak (on one of the other Jeep forums) and he suggest Crown rears ($100/pair) and I am going to go with those and see what he suggest for the front.
__________________

__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #3  
Old 08-19-2014, 03:44 PM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

The order from Nick is as follows:
- Crown front and rear lower control arms (comp quality as Mopar and 1/3 less cost)
- Mopar UC Springs (read bad things about Moog springs)
- Mopar upper rear a arm outer bushings
- 8 Crown coil spring isolators

With the with the rear upper center ball joint the rear suspension will be entirely rebuilt. I probably will need to replace sway bar bushings and end links but that can wait. This will make a fair amount of difference on the way the WJ drives.
__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #4  
Old 08-19-2014, 09:48 PM
Member
 
Join Date: Jun 2014
Posts: 48
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 244
Mike Sal is on a distinguished road
Re: '04 Columbia Ed Suspension refresh

take some pictures of the work. Is swapping out the arms as simple as having an impact driver on the bolts?
Mike Sal
__________________
Reply With Quote
  #5  
Old 08-20-2014, 11:44 AM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

The swap it pretty much that simple and straight forward - just support the weight of the axle with a jack.
__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #6  
Old 12-04-2014, 05:36 PM
Member
My Jeep: 2002 4.7L WJ
 
Join Date: Dec 2011
Location: Germany
Posts: 22
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 1115
DHart is on a distinguished road
Re: '04 Columbia Ed Suspension refresh

I have read several posts that warn to just snug up the arm bolts while supported and do the final torque after the the wheels are back on the ground. I believe the problem is that if you torque them down while it is still up in the air it causes early bushing failure in the arms. Good luck with your efforts at restoring your ride!
__________________
Reply With Quote
  #7  
Old 12-07-2014, 03:45 PM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

Thanks DHart

I was thinking about that the other day. I need to get those torque values handy for the install. I hope to finally get to this project at the end of the week.
__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #8  
Old 12-13-2014, 05:08 AM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

Got the isolators and springs swapped over yesterday. Took me just over three hours and I did the work in my own garage. Rear first and went very easy. The front took a bit longer but it was not bad. I decided to wait to do control arms on a friend's hoist instead of tackling them at my place. I am very surprised at how much the UpCountry springs changed handling of the Jeep - no more roll or loose feeling like before. Other than some clunky rear swaybar end links it is very quiet and tight. I will get some pics up later today after some more sleep. The arrival of our daughter has me up at all strange hours of the night.
__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
  #9  
Old 12-13-2014, 02:50 PM
Trav1s's Avatar
Member
My Jeep: 2004 4.7 HO WJ
 
Join Date: Apr 2012
Location: Cedar Rapids, IA
Posts: 769
Thanks: 23
Thanked 20 Times in 19 Posts
Rep Power: 1842
Trav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond reputeTrav1s has a reputation beyond repute
Garage
Re: '04 Columbia Ed Suspension refresh

All noises quiet and owner is very happy with the swap. It drives much different than before - no more sway and does not wander like before. The twitchiness in the rear end has also been reduced. Figured out the noise was the rear lower shock mounts so I retorqued them. Also put a couple of washers in the bottom of the rear swaybar links to get them tight. The links will get swapped out when I do the control arms and rear upper A arm.





__________________

__________________
2004 Columbia Edition WJ 4.7 HO
RB4/Moog HD Steering Stabilizer/PML trans pan 10304/ Autometer trans temp and oil pressure gauge/UpCountry springs & OME 10MM Spacers/Bilstein shocks/Rubicon Moabs/255/65r17 Cooper Discoverer AT3/Factory chrome tow hooks/Mopar hitch & a loose nut behind the wheel
Reply With Quote
Reply

Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Durango Lives On (Refresh Coming for '17) Crew Member 2011+ Dodge Durango-WD 33 05-17-2014 09:56 AM
Will the Wrangler see a refresh for the 2014 model? Srt8_hmi Wrangler-YJ, TJ & JK 2 05-08-2013 02:09 PM
My Girlfriends '04 GC Columbia Edition!! Nice pics! BOYCHIKS Members Rides 28 03-02-2010 01:09 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:13 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by Chrysler Group LLC.