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Old 02-23-2014, 09:21 PM   #1
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Question about Draglink.

Recently I got death wobble in my 2007 with TF 2.5" coil lift, 35" Mtr/k's on 15x8 wheels. I've gone through Planman's list, identified bad wheel U-joint replaced it and that did not fix it. Also loosened and retorqueing to spec all control arms and TB. Identified quit a bit of vertical play in draglink at knuckle end, this is where my question starts. Should I replace the entire draglink or just the TRE at knuckle side, and if I am to replace the entire DL, what brand do you recommend. I've researched this and I am confused on if I can run the synergy kit without doing the flip as I am only on 2.5" of lift. I apologize for the poor sentence structure, it's been a long day.

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Old 02-23-2014, 09:25 PM   #2
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If the joint is inexpensive, get it, replace it and see if it fixes the problem. Short term. Then you can plan on upgrades.


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Old 02-23-2014, 11:14 PM   #3
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The Synergy draglink can be run in the stock position. No need for a flip kit.
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Old 02-24-2014, 01:28 AM   #4
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I dont believe you can replace just the drag link end, either way, you would be needing a new one in no time. might as well replace it with quality stuff and save yourself the trouble.

have you checked your balljoints?
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Old 02-24-2014, 04:19 AM   #5
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Quote:
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I dont believe you can replace just the drag link end, either way, you would be needing a new one in no time. might as well replace it with quality stuff and save yourself the trouble. have you checked your balljoints?
I 'll go with this. I replaced the whole drag link with a new stock unit. Only for the same TRE to fail again. As said . The synergy drag link can be run either stock or flipped.

If you did have death wobble. The drag link would not be a cause only a contributing factor. It's also possible DW caused the bad TRE

Do you have to slow done for the DW to stop? Can drive through it, speed related or triggered by something ?
People's definition of DW are different. Trying to understand what's going on so we can help fix. More importantly .. not happen again.
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Old 02-24-2014, 04:20 AM   #6
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Some high steer kits only require a minimum of 3" of lift. Your 2.5" lift should produce at least 3" in front but it still may be marginal. If you just change the drag link ends, Synergy makes some of the best joints on the market so it a great opportunity to upgrade.

As Tweak said, have you checked the balljoints? And the tire rod end on the passenger side. With DW when a joint goes on one side the others are not far behind.
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Old 02-24-2014, 06:10 AM   #7
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The death wobble occurred at 40 mph after hitting a small pothole with the drivers side front tire, it does not happen unless I hit a pothole (the roads in PA are horrible) and does not occur at any specific speed as I have had it happen at around 25 mph while taking it home after the first time it happened. 0-60 tit doesn't happen without being triggered by a pothole. When it happened at 40 I had to apply the brakes all the way down to around 10-15 mph before it stopped. Drivers side TRE from centerlink was replaced and alignment was done approximately 500 miles before my first DW occurred. As far as the balljoints I did test them but did not see much play, although I was doing the check alone on those and it was hard to get a good look.
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Old 02-24-2014, 07:51 AM   #8
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Sounds like DW to me. Focus on the track bar. Remove and inspect holes. Even with 9/16 shouldered bolts the wholes are still bigger. Some times welding washers or brackets are the only fix.
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Old 02-24-2014, 12:00 PM   #9
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Alright I will check out the trackbar, holes and bracket. Probably going to purchase a new TB and the 9/16 bolt kit.
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Old 02-24-2014, 12:02 PM   #10
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I did do the check by turning wheel slightly and feeling/listening/looking for clunks and play in the TB but didn't feel anything. The draglink has a very noticeable clunk feel, noise and you can see the vertical play.
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Old 02-24-2014, 12:07 PM   #11
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Synergy drag link run in the stock position FTW.
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Old 02-24-2014, 12:46 PM   #12
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Quote:
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synergy drag link run in the stock position ftw.
x2
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Old 02-24-2014, 12:46 PM   #13
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I went through two OEM Drag link TRE's and found the post with the MOOG Shevy replacement that is grease-able. This is a direct fit replacement. I haven't had it on but for a few hundred miles so I can't say if it has made a difference.
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Old 02-24-2014, 12:52 PM   #14
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Hey Planman, I really appreciate your videos/write-up about DW, it's been very helpful. Went through the checklist and found the draglink to be the only part to have play in it, can hear/feel and see it. I'm going to upgrade to the synergy and most likely get an HD TB as well with 9/16th bolts, hoping I can get this issue resolved soon.
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Old 02-24-2014, 02:04 PM   #15
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Sorry for all the questions but I just can't find this info on any threads already up. Anyone know if Synergy DL in stock position will have any clearance issues with my 15x8 3.75" BS? Don't want to spend $200 on a part that won't work.
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Old 02-24-2014, 02:22 PM   #16
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Drag link should not be a issue. Tie rod on the other hand yes.

Sounds like a good plan. If you have the means weld washers to the factory TB mounts holes.
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Old 02-24-2014, 02:35 PM   #17
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KJeeper I appreciate your quick responses and good info. Trying to make these purchases with enough time to get them delivered by Saturday. I'm in quite a situation, Jeep is stuck at my hometown in PA, I'm stationed in Upstate NY making trips on Fridays home and trying to fix this problem with only 1.5 days each weekend of wrench time I'm hoping this will be the last trip. As far as welding the washers on I plan to do that, got a welder at the house.
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Old 02-24-2014, 02:44 PM   #18
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Awesome ... Good luck.
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Old 02-24-2014, 09:34 PM   #19
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some washers have enough play that they wont matter, be sure to check this before. do not reinstall the OEM bolt, go get a grade 8 9/16. I actually took 1/4" plate and made my own washers by drilling them just under 9/16 and using a rat tail file to open up the hole just enough to hammer a bolt through. sucker isnt going anywhere!
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Old 02-25-2014, 04:45 AM   #20
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Quote:
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some washers have enough play that they wont matter, be sure to check this before. do not reinstall the OEM bolt, go get a grade 8 9/16. I actually took 1/4" plate and made my own washers by drilling them just under 9/16 and using a rat tail file to open up the hole just enough to hammer a bolt through. sucker isnt going anywhere!
That's actually not a bad idea. I found these too.
https://artecindustries.3dcartstores...asp?itemid=393
Ruff stuff also has them available and different types.
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Old 03-02-2014, 08:53 PM   #21
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Well I fixed my DW. Replaced the draglink, track bar (both synergy) and replaced stock trackbar bolts with 9/16 grade 8's. It drives great now. The quality of those two parts is excellent, well with the money. I appreciate all of your help and information.
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Old 03-02-2014, 08:58 PM   #22
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Quote:
Originally Posted by WranglerJK07 View Post
Well I fixed my DW. Replaced the draglink, track bar (both synergy) and replaced stock trackbar bolts with 9/16 grade 8's. It drives great now. The quality of those two parts is excellent, well with the money. I appreciate all of your help and information.
good to hear!
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Old 03-02-2014, 09:24 PM   #23
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Yep great to hear
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Old 03-02-2014, 09:39 PM   #24
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Yep great to hear
Evening Ken,

Curiosity question, the Forum Members understanding DW, and upgrades such as the 9/16 bolt kit, along with beefing up the surface area on the brackets, (weld on washers), which all makes sense! But has anybody ever sent a suggestion into Chrysler/Jeeps Technical Service Department, in hopes that just maybe the factory would take this information and evaluate it for themselves. Then maybe implement it into production as a product improvement, so that this DW as we know it, is minimized???

You as a Moderator, do you have any inside contacts with the Factory?
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Old 03-02-2014, 10:17 PM   #25
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No sir, there has been attempts I believe. talked about early in the bolt thread. To them- it's not a problem and brought on with improper maintenance and/or with modifications. I am moderately modified and never experienced DW. I also mark and check my bolts often.
Then you have people with stock jeeps with DW, but they never check their suspension. So maybe they're right ?
It's a touchy subject. Mainly because any solid axle can experience DW, Not just jeeps.

I truly think IFS is in jeeps future. There's your fix for DW scary to think about
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Old 03-02-2014, 10:38 PM   #26
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Yes, I know that Ford for one, has also had their share of the DW issues!

Yep, IFS has in fact been discussed, and our solid axles as we know them, may just go away.............

This is why, I have no plans to ever sell my current Wrangler.........
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Old 03-02-2014, 11:00 PM   #27
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Think of resale value
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Old 03-02-2014, 11:12 PM   #28
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Yes, resale value, but when you become a old Coot like me, (God willing, you will get there some day), I just turned 70, and have been married for 50 years, then the resale thinking kind of is put on the back burner. Fortunately, I can still jog a couple of miles a day, but when that goes away, (and it will someday), than my Black Rubi will be given to one of my Grand-sons, just maybe we will do a drawing..........
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Old 03-02-2014, 11:28 PM   #29
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Yes, resale value, but when you become a old Coot like me, (God willing, you will get there some day), I just turned 70, and have been married for 50 years, then the resale thinking kind of is put on the back burner. Fortunately, I can still jog a couple of miles a day, but when that goes away, (and it will someday), than my Black Rubi will be given to one of my Grand-sons, just maybe we will do a drawing..........
Thought I was old at 36 :P
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Old 03-02-2014, 11:40 PM   #30
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Thought I was old at 36 :P
See there, you are younger than both of my Daughters, (just a young LAD), well enjoy your youth while you have it!

I really have no kicks in life, and thankfully get around just fine in good health. I owe that to my Budweiser drinking, (as I tell everybody), but actually about all that I ever drink is Ice Tea and milk, just a 230 pound wimp I guess......

Thanks for moving the TJ guy!!!!!!!!!!

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