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Old 11-17-2013, 07:53 PM   #1
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Under 4k miles and the OEM trackbar is garbage

Just installed my teraflex performance lift and upon inspection of the trackbar I noticed a very slight oval. So I picked up some grade 8 9/16-18x3in bolts to replace the factory ones and the bolt would not go through the trackbar bushing on the frame side, the one end of the bushing was oval-ed. I was like WTF, my jeep has uder 4k miles and has never been off-road. So today I ordered a teraflex monster trackbar and will get the front end as it should be before I have any issues.

Glad I am a member on this site as the info I get here is great, I would have never found that if it wasn't for the info on the forum

Word of advice is check your trackbar, get the 9/16 bolt upgrade and keep nit torqued, doesn't matter how many miles you have on it.

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Old 11-17-2013, 09:29 PM   #2
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Yea there's a whole bolt thread on here worth reading. Haven't had trac bar problems yet. But using a threaded bolt through a moving part is really poor engineering. During some hard wheeling in southern Utah, I developed a clunking on the rear passenger side. Couldn't for the life of me figure out what it was. So I laid under the back of the jeep and did some bench presses and heard the clacking and saw the lower shock bushing was moving up and down on the bolt. I ordered new bushings and sleeves, took the bolt out and the threads are worn off also causing the sleeve to wear leading to the play in the crush sleeve of the bushing. Went to local bolt and fastener store and bought smooth sleeve bolts and did both lower rear shocks. I plan to get the Synergy replacement bolt package and start replacing the inferior stock bolts.

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Old 11-17-2013, 09:31 PM   #3
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Originally Posted by damndirtydog View Post
Yea there's a whole bolt thread on here worth reading. Haven't had trac bar problems yet. But using a threaded bolt through a moving part is really poor engineering. During some hard wheeling in southern Utah, I developed a clunking on the rear passenger side. Couldn't for the life of me figure out what it was. So I laid under the back of the jeep and did some bench presses and heard the clacking and saw the lower shock bushing was moving up and down on the bolt. I ordered new bushings and sleeves, took the bolt out and the threads are worn off also causing the sleeve to wear leading to the play in the crush sleeve of the bushing. Went to local bolt and fastener store and bought smooth sleeve bolts and did both lower rear shocks. I plan to get the Synergy replacement bolt package and start replacing the inferior stock bolts.
Yep I read it, that lead me to discover how poorly engineered some things are.
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Old 11-17-2013, 10:56 PM   #4
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The frame side bushing is designed for a 14mm bolt. This started in '13. That's why your new bolt wouldn't fit.

But yes ovaling does suck
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Old 11-17-2013, 11:42 PM   #5
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The frame side bushing is designed for a 14mm bolt. This started in '13. That's why your new bolt wouldn't fit.

But yes ovaling does suck
I hope the teraflex track bar accepts a 9/16 bolt. I'll call them tomorrow to confirm.
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Old 11-18-2013, 10:59 AM   #6
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Originally Posted by 2013 gecko View Post
I hope the teraflex track bar accepts a 9/16 bolt. I'll call them tomorrow to confirm.
Not sure about Teraflex, but the stock trac bar will accept the 9/16.
My guess is that using generic full thread metric bolts were a cost saving tactic on the part of Chrysler.
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Old 11-18-2013, 11:08 AM   #7
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Originally Posted by damndirtydog View Post
Not sure about Teraflex, but the stock trac bar will accept the 9/16.
My guess is that using generic full thread metric bolts were a cost saving tactic on the part of Chrysler.
I decided I'm going with the synergy bar and frame support bracket, seems like a solid setup to avoid trackbar issues.

I thought the 9/16 would fit as it went in the bushing but the frame side of bushing was oval-ed so it wouldn't go all the way through. What a bad design on chryslers part.
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Old 11-18-2013, 11:36 AM   #8
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Originally Posted by damndirtydog View Post
Not sure about Teraflex, but the stock trac bar will accept the 9/16.
My guess is that using generic full thread metric bolts were a cost saving tactic on the part of Chrysler.
The teraflex will work with 9/16 as all of the track bars on the market were designed pre-2013.

The stock track bar for the '13 and '14 will not accept 9/16 on the frame side. The frame itself will accept 9/16, but not the bushing inside. Since the frame will accept 9/16, this means the mass of aftermarket track bars will work.
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Old 11-18-2013, 12:51 PM   #9
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Quote:
Originally Posted by 2013 gecko View Post
Just installed my teraflex performance lift and upon inspection of the trackbar I noticed a very slight oval. So I picked up some grade 8 9/16-18x3in bolts to replace the factory ones and the bolt would not go through the trackbar bushing on the frame side, the one end of the bushing was oval-ed. I was like WTF, my jeep has uder 4k miles and has never been off-road. So today I ordered a teraflex monster trackbar and will get the front end as it should be before I have any issues.

Glad I am a member on this site as the info I get here is great, I would have never found that if it wasn't for the info on the forum

Word of advice is check your trackbar, get the 9/16 bolt upgrade and keep nit torqued, doesn't matter how many miles you have on it.
You're getting bent out of shape for no reason. In 2012, Chrysler changed the size of the bolt on the frame side, so 9/16th bolts dont fit, you need a 14mm bolt. They are basically identical to the eye. Sorry to say, you spent a lot of money for no reason.

Oh, and one more thing, the factory trackbar is better than 99% of the trackbars on the market. It is forged steel and works very well. There are guys running 40" tires, with Dana 60 fronts, coilovers, etc, and they use the stock trackbar because its so strong.
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Old 11-18-2013, 05:00 PM   #10
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You're getting bent out of shape for no reason. In 2012, Chrysler changed the size of the bolt on the frame side, so 9/16th bolts dont fit, you need a 14mm bolt. They are basically identical to the eye. Sorry to say, you spent a lot of money for no reason.

Oh, and one more thing, the factory trackbar is better than 99% of the trackbars on the market. It is forged steel and works very well. There are guys running 40" tires, with Dana 60 fronts, coilovers, etc, and they use the stock trackbar because its so strong.
Well it may be strong but it also has a damaged oval-ed bushing end before the 4k mile mark, so IMO it's not all that strong.

Plus I like spending money, it's why I work
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Old 11-18-2013, 05:27 PM   #11
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Well it may be strong but it also has a damaged oval-ed bushing end before the 4k mile mark, so IMO it's not all that strong.

Plus I like spending money, it's why I work
Yeah I'm the same way, so I bought JKS track bars.

Still, there is something nice about the OEM bar's ability to bend. Aftermarket bars don't bend. When you think about it, a bar that doesn't bend will transfer all of the force to the mounting brackets. Since some people have reported mounting brackets snapping, it seems an aftermarket track bar will only increase the chances of that happening.

I'm just guessing through.
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Old 11-18-2013, 06:19 PM   #12
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Yeah I'm the same way, so I bought JKS track bars.

Still, there is something nice about the OEM bar's ability to bend. Aftermarket bars don't bend. When you think about it, a bar that doesn't bend will transfer all of the force to the mounting brackets. Since some people have reported mounting brackets snapping, it seems an aftermarket track bar will only increase the chances of that happening.

I'm just guessing through.
I also ordered a Synergy frame track bar support bracket, this will help strengthen that part, next I'll get the axle side reinforced then I should be GTG.

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