Front end grinding, clunk when turning - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 15 (permalink) Old 06-20-2015, 07:56 PM Thread Starter
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Front end grinding, clunk when turning

I have a 2008 Limited HEMI with an OME 2.5in Lift, JeepinByAL A-Arms and I do not have spacers. I keep getting a clunk and popping in tight turns at low speed and I just found a part of the lower control arm is rubbing up against the interior of the part that houses the Caliper/Brake assembly. I wanted to know if anyone else has had this problem, knows what causes it or how to fix it? Thanks!
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2008 Commander Limited HEMI QDII, Silver with Saddle Leather
Mopar Cat Back Exhaust, Mopar Cold Air Intake, OME 2.5 Lift with JBA A-Arms, Toyo MTII Tires, Method NV Alloys, 4XGaurd side rails, rear sliders, front guard, rear guard, rear diff cover, engine guard & belly guard. Full 4xGaurd Matrix brush guard, SparkTek Blackout Headlights, Rola extended roof basket.


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post #2 of 15 (permalink) Old 06-20-2015, 08:09 PM
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yeah, i ahve the same problem, but have no idea what it is. I also have that scaring from the LCA, but I didn't that could be the issue. anyone?


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~XKs LEAD THE WAY.~ 2006 Commander Hemi Limited. Superchips 3872 Flashpaq. TRAIL RATED with the QDII. Modified Rusty's lift(3.5"+) Bilstein 5100/5125 struts/shocks. 1.25" wheel spacers, 255/75/17 BFG M/Ts, 4.75# D-rings, 4xguard Matrix brushguard. Smittybilt XRC 9500. DIY engine skid, bump extensions. RAGE Racks low-pro Stingray roof rack
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post #3 of 15 (permalink) Old 06-20-2015, 08:31 PM Thread Starter
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The place that installed my lift says everything is ok but im going back next week to have them tear it down. I think it may end up being a loose tie rod or ball joint...maybe even steering rack bushings.

2008 Commander Limited HEMI QDII, Silver with Saddle Leather
Mopar Cat Back Exhaust, Mopar Cold Air Intake, OME 2.5 Lift with JBA A-Arms, Toyo MTII Tires, Method NV Alloys, 4XGaurd side rails, rear sliders, front guard, rear guard, rear diff cover, engine guard & belly guard. Full 4xGaurd Matrix brush guard, SparkTek Blackout Headlights, Rola extended roof basket.


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post #4 of 15 (permalink) Old 06-21-2015, 02:06 PM
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The rub mark on the aluminum steering knuckle is normal, that is the contact point for hitting the steering limit. I have it on my 2010 that has stock suspension height.

The symptoms you describe sound like a CV Joint in the front drive shafts, which often wear more quickly and are under more stress when you do a lift.

If you have QDII, the LSD can bind in very tight turns, often that is because the diff fluid is worn out or changed without using the proper friction modifier additive. If you do NOT have QDII, then you have open differentials and would be very unlikely to be the problem.


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Last edited by Mongo; 06-21-2015 at 02:12 PM.
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post #5 of 15 (permalink) Old 06-21-2015, 05:45 PM
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funny you mention the binding during tight turns. My LSD fluid has been changed twice since I bought my Jeep with 63k miles (currently ay 130k) and the modifier fluid has been added both times. It still binds during tight turns. The service dept. says it's normal and not to worry. Should I?

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post #6 of 15 (permalink) Old 06-22-2015, 12:39 AM Thread Starter
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Ideas

I actually had my diff fluid changed about two months ago, with the modifier added. At this point I agree it is most likely the CV joints or steering rack bushings. Since the Jeep is a 2008 and I just put the lift on a few months ago,I believe the bigger tires and lift put a new stress on already 7 year old parts. Im going to have them replaced this coming week and I'll let you know what happens. Glad to see others have that same scarring from the LCA so I wont worry about that as much.

2008 Commander Limited HEMI QDII, Silver with Saddle Leather
Mopar Cat Back Exhaust, Mopar Cold Air Intake, OME 2.5 Lift with JBA A-Arms, Toyo MTII Tires, Method NV Alloys, 4XGaurd side rails, rear sliders, front guard, rear guard, rear diff cover, engine guard & belly guard. Full 4xGaurd Matrix brush guard, SparkTek Blackout Headlights, Rola extended roof basket.


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post #7 of 15 (permalink) Old 07-08-2015, 10:22 AM
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Check this out regarding that marking on the LCA

Quote:
Originally Posted by USN_BlackWK View Post
Edit: I added more information for those looking at installing 37's

Trim the front lower control arms for more turning radius. I took approximately 1/4" off the stops and get no rubbing on the frame.




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post #8 of 15 (permalink) Old 07-08-2015, 01:02 PM
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Quote:
Originally Posted by omega48er View Post
Check this out regarding that marking on the LCA
I kind of want to do this even though it is completely unnecessary.
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post #9 of 15 (permalink) Old 07-08-2015, 03:23 PM Thread Starter
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I agree. I'll take every centimeter I can get!

2008 Commander Limited HEMI QDII, Silver with Saddle Leather
Mopar Cat Back Exhaust, Mopar Cold Air Intake, OME 2.5 Lift with JBA A-Arms, Toyo MTII Tires, Method NV Alloys, 4XGaurd side rails, rear sliders, front guard, rear guard, rear diff cover, engine guard & belly guard. Full 4xGaurd Matrix brush guard, SparkTek Blackout Headlights, Rola extended roof basket.


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post #10 of 15 (permalink) Old 07-08-2015, 05:11 PM Thread Starter
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Well, my wallet is lighter but the job is done. Everything is tighter than a knat's ass stretched over the lip of a mason jar. Unexpectedly, the rubbing on the right front tire when at full lock (turning wheel right) I was getting since my lift was installed has also almost completely gone. I'm pretty confident the new wheels, tires and lift I got a few months ago accelerated the demise of already 9 year old (117,000 miles) ball joints and sway bar bushings.
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2008 Commander Limited HEMI QDII, Silver with Saddle Leather
Mopar Cat Back Exhaust, Mopar Cold Air Intake, OME 2.5 Lift with JBA A-Arms, Toyo MTII Tires, Method NV Alloys, 4XGaurd side rails, rear sliders, front guard, rear guard, rear diff cover, engine guard & belly guard. Full 4xGaurd Matrix brush guard, SparkTek Blackout Headlights, Rola extended roof basket.


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