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.