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2016 JKU all over the road, steering problems, white knuckle ride

18310 Views 73 Replies 9 Participants Last post by  CRIK
Steering just feels lost and white knuckle going down the highway. Its very hard to explain but its borderline terrifying. I've checked everything and replaced a lot, also added support/relocation brackets as described below. I've played with tire pressures ( no noticeable difference from 28 -35 psi). I've made slight improvements with replacing parts and adding brackets but cant get it to feel right and am about to use this POS for target practice!!!!!

  • 2016 JKU lifted by previous owner. I am guessing 3-3 1/2"
  • 35 x 12.5 tires on 20" rims
  • Aftermarket adjustable track bars ( good shape and axles positioned correctly)
  • Front track bar bolt replaced and track bar brace and sector shaft brace installed
  • Factory control arms but Rancho upper control arm relocation brackets installed (RS82103) with upper control arm in the 3rd hole from the top...so caster is well within spec
  • 1/8" Toe in
  • New tera flex ball joints
  • New drag link
  • Falcon 3 setting steering damper

All joints checked for slop by placing my hand across the joint with someone cranking the wheel side to side and no deflection at any joint . Just did this again today

Whilst adjusting my toe I noticed that when I roared the tie rod ( rotation within the range of the joints) it causes both wheels to turn slightly (one direction when I rotate it up and the opposite when I rotate it down down).As stated above there is no deflection across either tie rod end and the only movement is what is designed into the ball. I have a great video but it wont let me upload it.......has anyone got and insight into this?
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Metalcloak arms / joints are excellent.

Don't think I read it earlier - your TB frame bracket hole isn't wallered out is it? That might cause the mystery shift. If it is, just put on one of the bracket braces out there (I use Synergy's bracket).

I ran a Synergy TB a few years back - it was the older version with a heim joint on the axle side. My Jeep was also doing some weird tracking like you mentioned earlier. Eventually, that heim joint got loose (like MAYBE 0.002" or something). I think the worn joint was enough to cause my tracking problem. I'm now running their dual durometer bushings on both ends and they've been excellent and MAINTENANCE FREE. :laughing:

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