[Imped]

Bump steer is caused by ONE thing.

Messing with all of that other crap won't help you one little bit in regards to bump steer.

Define the problem. Determine why that problem is occurring. Address the root cause. It's that simple.

If bump steer is truly your problem, it's being caused by the drag link and track bars traveling differing arcs.

 

[Imped]

So what you're saying is when my ball joints were worn out and I'd hit a bump causing my Jeep to steer into another lane without me asking it to or when all the grease blew out of my tie rod ends and I hit a bump and my Jeep steered my off the road and tried to kill me that wasn't bump steer either. It was just going over a bump and my Jeep steering itself, but not bump steer. OK, got it.

Bump steer has a very explicit definition in this application. You weren't experiencing bump steer, you were experiencing the results of crappy steering components.

 

[Imped]

So if the symptom was the same as misaligned draglink and trackbar, how would you describe it?

I've already told you how I would describe it. I care about the cause, not the symptoms.....focusing on the symptoms alone can create muddy water and can make finding the root cause pretty difficult. Diagnosing the problem in a methodical, sensible fashion will almost always expose the cause very quickly and with little wasted time.

Determine the cause--are the drag link and track bar mounting points parallel, in the same plane, and very close to the same length or not? If not, it's bump steer. If so, move on and find the cause elsewhere, it's not bump steer. On that note, I've never felt worn out steering components (even terribly worn) give a remotely similar feel to bump steer.

I get paid to do this stuff and that's how I go about it. You can call it whatever you like and go about diagnosing the problems however you like. Judging by the pictures and the OP's posts, I think he's mistaking his problem for being bump steer when that's not the case.

 

[Imped]

That could be true. When I hit a bump or puthole my steeringwheel moves. When both wheels hit it simultenaously the steeringwheel doesn't move. I tought it was bumpsteer. What do you think it is?

It could be a multitude of things. E-diagnosis is pretty tough, especially when it comes to front end issues. I would first perform a dry steer test to check all linkage ends. Then check all control arm bushings by loading them using tire rotating with the Jeep in gear.

Well if someone tells me they have bump steer I'm not going to be arrogant enough to tell them it can only be specifically caused by one thing. I'm going to understand that they are describing what happens when they hit a bump and start the diagnosis from there. If someone tells you when they hit a bump their JK changes lanes, how would you describe it?

It has nothing to do with arrogance and if you truly think that, you've got a ways to go when it comes to giving technical advie. There's a method to how I was approaching his issue and getting to eventual answers is intentional. Again, I'll do things my way and you can do things yours.

 

[Imped]

1/8" toe-in will suffice for about anything. No reason to over-complicate that.

Caster should be in the 4-6* range. I prefer higher caster but with the factory JK axles, that's difficult to establish while maintaining a proper pinion angle.

Neither one of those are your problem, though. Something is allowing excess movement, which is causing the jerk you feel.