Something scary happened!

[turbomart]

Originally Posted by Festa_1

Yes it is, there are eccentric cams on the front lower control arm bolt.
A web search should show you a few pics.
I seem to recall it being set quite high maybe 6 or 7

Mine didnt have these but I do recall the book showed them, maybe only fitted to later model ZJ's or ones that had alignment issues under warranty.
WJ's definately dont have them & they use a oval shaped rubber bush at diff end with slots in them.

[turbomart]

Originally Posted by xjdavid

have jou tried installing a stiff maybe polyuathaine bush in the bottom of the tracbar. The DW can only start when something springs back after the wheel gives a kick to one side as a result of hitting a bump. If everything is tight and bushes in the tracbar have very little spring in them you will not get DW.

JUst had a thought, doesnt the WJ have a rubber bush in the top end of the tracbar as well. If this is true try replacing the bush with a steel one. Sounds crazy I know but the DW is almost certainly caused from spring in the tracbar. You need to get it stiff.

DW is far more likely to be from bad lower control arm bushes.

[turbomart]

Originally Posted by Troutman

Hmmmmm....sounds like there is no definitive cure at all and it's a very expensive trial and error game. That list from IRO is a wasted exercise, everything they recommend is either canceled out or made worse by the next thing they recommend. My WJ is standard height and I've not experienced DW at all and I punt it around at a brisk pace. Hard to believe it's a design flaw if not all of them exhibit the DW's, maybe more a case of suspension components and bushes being sourced from different suppliers at build time or the components being out of spec.

Not so much a design flaw but is a problem with any solid front axle design.
The very thing that makes it work so well offroad (5 link coil sprung live axle) makes it susceptible to DW.Jeep have worked hard to tune it out but when you modify the design (by lifting it) it can come back.
Stock jeeps only get DW if something is worn out or damaged.

[spotty dog 360]

Originally Posted by turbomart

Not so much a design flaw but is a problem with any solid front axle design.
The very thing that makes it work so well offroad (5 link coil sprung live axle) makes it susceptible to DW.Jeep have worked hard to tune it out but when you modify the design (by lifting it) it can come back.
Stock jeeps only get DW if something is worn out or damaged.

That would be us although it almost seems better with the lift

[Tardis]

I have about 3" lift (790) on mine useing JKS adj control arms upper and lower,i had very bad DW until i fitted a adj trackbar with poly bushs with steel sleeves,that got rid of about 80% of DW, new tyres got rid of about 10%,its is very mild on the rare times i get it now and it fades out by itself,i still get bump steer but i am thinking along the same lines as Turbomart,(control arms drop brackets) to smooth it out

[Troutman]

Sure don't make a lift an attractive idea though. Sounds like you have to re-engineer a fair whack of the suspension just to get a safe drive.

[bikemat]

yeah, you really do!!! spring/shocks... then trackbar.... then control arms... sway-bar links.... a-arm spacer... driveshaft... and hopefully i won't need anything else!