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Old 11-23-2018, 02:47 PM
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JK wandering after new Currie axle install

I’m having trouble with my JK wandering after the new axle install at around 60-70 mph. New Synergy ball joints, axle shafts, locker and gears. I’ve got the yeti tie rod, drag link w/attenuator, and track bar. I’ve got the high pinion axle so I don’t know if that makes a difference. I’ve got a 4.5” lift w/metalcloak dual rate coils and falcon adjustable shocks and adjustable LCA’s. Even after an alignment it still wanders. Attached is my alignment sheet. Since then I’ve dropped my psi to around 28psi which helped and adjusted my trackbar to within 1/2 inch difference. Should I reduce my castor? Toe in?

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16' JKU,37"Milestars 4.5"Metalcloak dual rate coils, Teraflex Alpine adjustable control arms,3.2 Falcon adjustable shocks,Steer Smarts Griffin HD drag link w/attenuator,Steer Smarts HD trackbar,Steer Smarts HD tie rod ends with WOD 2.5 ton aluminum sleeve,Currie antirock, Currie RockJock44,Ten Factory chromoly axle shafts, truetrac rear & eaton elocker front,JKS rear trackbar and rear adjustable swaybar discos,Adams 1310 front driveshaft and Ripp Supercharged
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Old 11-24-2018, 07:58 AM   #2
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Research Synergy ball joints, this is not an uncommon complaint.

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Old 11-24-2018, 08:45 AM   #3
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About 2 weeks ago I removed the Synergy ball joints from my JKUR and replaced with the Teraflex Gen2. The next day I helped install a set of Synergy on a friend's Jeep and I was amazed at the quality difference between his and the ones I had just removed from mine. Not sure what's changed for them, but I wasn't impressed with mine and I'm certainly less impressed with the ones we just installed. Production change? Material change? Not sure but they weren't even as nice as the NAPA I installed on another friend a couple of weeks before.

FWIW the new Teraflex ones are amazing and much beefier. We're running them on both Jeeps now. Jason at Krawl can get you good deal on them.

Good luck, sorry for your issues.
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Old 11-24-2018, 09:24 AM   #4
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Centering the axle side to side, and more positive caster are the major alignment factors that help. As above, the parts have to be "right" first of all. Have a good tire shop make sure your tires are not contributing to the issue.
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Old 11-24-2018, 09:37 AM
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@MW2016 and @Blue Baby Sound I had a feeling they were going to be the Synergy ball joints. Oh well looks like I gotta fork out again to the money pit

@15anvil the axle is pretty centered. I'll get the tires checked out today and probably do a tire rotation. Maybe that'll help until I get the new ball joints.
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Old 11-24-2018, 10:23 AM   #6
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My steering gear had a lot of dead band at 68k miles. Even with alignment, it still had a bit of wondering until I replaced the steering gear.
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Old 11-24-2018, 10:30 AM   #7
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I would also suspect the synergy ball joints BUT if you can wait it out they will break in and things will improve. The issue is the new joints are so tight it affects the wheels ability to center requiring constant steering correction. It drives you bonkers but does get better when they break in.
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Old 11-24-2018, 10:49 AM   #8
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Likely need to break in the balljoints. Just looking at your list of upgrades, have you done anything to reinforce or upgrade the steering box or sector shaft? 37s and fighting new ball joints is pretty stressful to that poorly designed stock setup. No clue what they were thinking using that long of a sector shaft!
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Old 11-24-2018, 11:05 AM
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I would also suspect the synergy ball joints BUT if you can wait it out they will break in and things will improve. The issue is the new joints are so tight it affects the wheels ability to center requiring constant steering correction. It drives you bonkers but does get better when they break in.
I was going to try and wait for the break in but with all these black friday deals going on I can get a great deal on some ball joints.
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Old 11-24-2018, 11:09 AM   #10
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Seems like mine took about 500 miles to break in,not sure how long its been since you've installed them.
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Old 11-24-2018, 11:11 AM
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Originally Posted by fuzzylogic_y2k View Post
Likely need to break in the balljoints. Just looking at your list of upgrades, have you done anything to reinforce or upgrade the steering box or sector shaft? 37s and fighting new ball joints is pretty stressful to that poorly designed stock setup. No clue what they were thinking using that long of a sector shaft!
Unfortunately I haven't done any upgrades to the steering box or sector shaft. My goal is to go PSC hydro or at least do the big bore
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Old 11-24-2018, 11:17 AM
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Seems like mine took about 500 miles to break in,not sure how long its been since you've installed them.
Installed them last Friday lol. So it looks like I have around 300 miles to go but like @RichL35 mentioned it's driving me bonkers. Especially now since the rain has been coming in steering feels super unstable.
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Old 11-24-2018, 01:09 PM   #13
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Quote:
Originally Posted by Blue Baby Sound View Post
Seems like mine took about 500 miles to break in,not sure how long its been since you've installed them.
I had a set of the original Teraflex ball joints and they produced the same issues. It took like 3500 miles for them too loosen up and what finally did it was a solid day of wheeling! Beat the crap out of them for a day and the drive home was night and day better... just like that!

My new axle I went with Dynatrac ball joints and never had the issue. Totally different design though.
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Old 11-24-2018, 07:35 PM   #14
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I had the same wandering issue. The Yeti attenuator may not like the Teraflex steering stabilizer. Look there first before redoing the ball joints.
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Old 11-25-2018, 09:00 AM   #15
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Quote:
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My new axle I went with Dynatrac ball joints and never had the issue. Totally different design though.
I noticed that I had to constantly correct my on-center steering with new Dynatrac Prosteer ball joints, which felt very tight. But I also did a Yeti tie rod and drag link at the same time. In my case, adding a little caster with Teraflex sport LCAs helped along with just putting miles on the parts. You seem to have plenty of caster, so it should feel better over time as things loosen up a little.
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Old 11-25-2018, 11:49 AM   #16
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Quote:
Originally Posted by jac04 View Post
I noticed that I had to constantly correct my on-center steering with new Dynatrac Prosteer ball joints, which felt very tight. But I also did a Yeti tie rod and drag link at the same time. In my case, adding a little caster with Teraflex sport LCAs helped along with just putting miles on the parts. You seem to have plenty of caster, so it should feel better over time as things loosen up a little.

Same here.. went Teraflex housing with caster correction and did a full Yeti front end along with Dynatrac ball joints and TF high steer knuckles. I started with 6 degrees of caster and it drove awesome. No wander and highway speeds were like driving a stock JK. I can certainly see how some break in time might still be required here and there. They are new parts after all.
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Nemesis is getting an LS this winter with a Motech install kit. Want to see how easy or hard the install is.... Follow here.
https://www.wranglerforum.com/f314/ne...e-2149753.html

What am I up too..? Browse some photos here. (Imgbb link)
https://www.wranglerforum.com/f31/ric...s-2163905.html
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Old 11-25-2018, 05:11 PM
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I put on another 150 mi the last few days and it definitely seems a lot better. I did end up ordering the teraflex ball joints after doing some research on the synergy’s since they seem to wear out prematurely. Plus I couldn’t pass up the discounted price.
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Old 11-27-2018, 06:39 PM   #18
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I had the same issue. I rebuilt all of my BDS control arm bushings, upper and lower, front and rear. That seemed to do the trick for my JK.
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Old 11-27-2018, 08:19 PM   #19
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Be sure to re tighten/re torque EVERYTHING (steering, control arms, track bars)
All of mine loosened up 500 or so miles after install. With 37’s I’m to the point where I have to check everything after every run.

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