Sway in frontend
JK Newbie
Joined: Nov 2008
Posts: 62
Likes: 0
From: Miamisburg, OH
Sounds to me like you've got a little bumpsteer. I have the FT lift also (although mine is sitting closer to 5.5" with the HD springs) and what fixed it for me was a combination of adding a drop pitman arm and trackbar relocation bracket (which you probably don't need if you're not sitting as tall), and then playing around with my caster. Finally found the sweet spot with the caster (we took it up pretty high, but I'd have to ask hubby exactly where we set it because I don't remember) and the problem has completely gone away.
You might want to take a look at your control arm bushings too. I had to replace mine at the same time I did the above.
I did it all at the same time, but I'm pretty sure it was adjusting the caster that did it. The difference is like night and day. I can't believe how smooth the ride is on pavement now, especially at speed, and much more stability on cornering.
You might want to take a look at your control arm bushings too. I had to replace mine at the same time I did the above.
I did it all at the same time, but I'm pretty sure it was adjusting the caster that did it. The difference is like night and day. I can't believe how smooth the ride is on pavement now, especially at speed, and much more stability on cornering.
JK Super Freak
Joined: Jul 2007
Posts: 1,492
Likes: 0
From: SoCal
Great info on adjusting your caster (and almost everything else) in this Project-JK writeup here.
You probably will need a slightly different number than I did, but I think mine is at 6.7 degrees right now. WayOfLife notes in that writeup that you'll probably need it to be somewhere between 6 and 7 degrees.
JK Freak
Joined: Oct 2008
Posts: 780
Likes: 1
From: Stafford, Virginia
experienced the death wobble for the first time... not a fun feeling... i notice it a little bit going to work in the morning doing like 55-60 when i hit a big bump but it fades... today when i was on the highway hit a bump at around 80 and my entire front end felt like it was going to shake apart had to pull over... talked to my local truck shop and they said when you have an alignment done to have the front tires toed out as much as possible without wearing the tires down... dont know but worth a shot... dont want to have that happen again...