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Troubleshooting Front End Clunks
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Author:  Silent_Tonto [ Tue Aug 16, 2011 8:15 pm ]
Post subject:  Troubleshooting Front End Clunks
I've been searching the forums to no answer so maybe someone can help me out. I just finished up a RK 3.5 on my wife's 09 KK and I'm having some clunking issues up front. I'm a Wrangler guy and can troubleshoot a straight axle problem but I'm still lost on the IFS. Is there anything I should look at specifically to find out whats clunking, anything I should try? Everything is torqued per RK and factory specs but it feels like a "bump steer" going on. I get a clunk when turning and going over bumps and can feel it in the steering wheel. Any suggestions??
Author:  tommudd [ Tue Aug 16, 2011 8:30 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
Take it off and install a good lift and problem solved :wink:
Some have ran that lift but its not very good :2cents:
Did you replace the front and rear shocks?
Do you have extended bumpstops?
Both can cause issues
What strength bolts came with it, for a while they were not including good quality bolts think it 5s or something they were sending
Author:  DirtyKK [ Wed Aug 17, 2011 5:31 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
a good alignment should cure the bumpstop. also with the RK lift you are probably getting contact on the spring with the upper control arm as the suspension travels downward. its only over bumps right? if thats the case, the JeepinByAl A-Arms might prevent it because they provide more clearance. you could have some other issue but thats likely the cause. ive had the RK lift, its alright for what it is....
Author:  KKJim [ Thu Aug 18, 2011 10:44 am ]
Post subject:  Re: Troubleshooting Front End Clunks
I have the same lift, and had the same problem. I replaced the front struts with Bilstein units and that didn't solve the problem. Then I spoke to Marlin at JBA and he suggested that my front ball joints may have been the issue. I bought JBA upper control arms and that did the trick. The clunking your hearing is your ball joints, they are shot. The nice thing is with the new control arms you will have replacable ball joints and they are servicable. I hope this helped.
Author:  At The Helm [ Thu Aug 18, 2011 12:20 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
Sway bar bolts not properly torqued seem to be a repeat offender for clunking noises....
Author:  Silent_Tonto [ Thu Aug 18, 2011 3:19 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
Thanks for the input guys. I don't think its the ball joints because it only has 28k on it and has never been offroad, I need to get is up on jacks and look at the sway bar and re-torque everything. If I cant find the issue then I'll be looking at the JBA arms, but I can't swing a full suspension kit right now.
Author:  KKJim [ Thu Aug 18, 2011 5:42 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
You should check to make sure everything is tight, but I can almost guarentee you its your ball joints. I changed mine at 35000, it doesnt have much to do with going off road, it has to do with the stress from the RK lift you installed. Budget lifts break stuff, its just how it goes. Pay less now and more later type of a thing. Good luck.
Author:  Silent_Tonto [ Thu Aug 18, 2011 10:14 pm ]
Post subject:  Re: Troubleshooting Front End Clunks
I know about the ball joints going bad of lifted vehicles, I have a JK that I've already swapped them out for failing early. It would make sense except that I just put the lift on 3 days ago. I think I have the clunks worked out, I went back under it and re-torqued everything and its pretty quiet now, just need to do some trimming. Thanks for everyone's input.
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