Sorry this is way off topic but I see you have grooved TSL's on your rig, as a kid my father had an older xj on 33x12.50 TSL's an together we grooved them one evening. The noise they made was something of an airplane taking off at every intersection haha. Can you relate?

 

Haha Yeah, they hum a lot. Everyone looks when I pass them

 

Glad I'm not the only one. Good luck getting it lined back up.

 

Adjusting the castor angle on a solid axle shouldn't change camber. Is your camber at -1.5 degrees (negative) right now? If so that's twice the max negative spec.

Did he/you check for worn ball joints or wheel bearings by jacking up the front wheels and shaking the tire at 12 and 6? Sometimes you need to put a breaker bar under the tire and pull up to feel the movement. I assume he did that since that's the first thing you should check before doing an alignment. Just throwing that out there.

Also a steering stabilizer would help. But the main cause of death wobble is worn out track bar bushings/joints from what I've seen.

 

Casters way to much.....should be around 4 to 5 degrees straight axles do have a slight camber built into them drastic changes in caster will effect camber unless you done some evil kenevil Bus jumps and bent your housing offsets are not needed

 

Compare to this....

 

What's goin on with your shock there? Is that some sort of home made shock extension?

 

That's interesting. The alignment spec stated that stock was 8 degrees. I know that it should change a bit to compensate for the lift, but 4 to 5 is the other direction. Should caster be less with the lift? I see that you have some big meats on your rig and a tall lift too...Are you successfully running at 4 to 5 degrees?

The ball joints are in good working order. He and I both checked them. I stuck with him throughout the alignment and assisted. He actually didn't charge me anything since we couldn't get the camber issue worked out. I had been driving it with the toe out a degree from my garage floor alignment, so we brought it back in to a 0 degree toe. All was well the past two days, until today (after putting 50 or so miles on it) and it sat for a hour, then death wobbled on me. Strange, since it's 10 degrees outside and I'd driven it this morning at 2 degrees, half expecting the flat spots in the bias ply tires to toss me around.

I've got a steering dampener in the mail to me, but I don't plan to put it on until I've got this issue sorted.

 

Does it vibrate like that? My 98 5 speed has a little shorter front shaft and if my yoke isn't pointed straight at the shaft it vibes at 40mph. I played with my lcas to determine this. I need uppers to correct it

 

9.6* of castor would mean your pinion is facing down or your differential cover is facing up. Basic home alignment I used was an angle finder against the differential cover bolts. This measurement should be around 85.5-86.5 degrees off 90 or 3.5-4.5 degrees off 0 rotating the pinion yoke up and diff cover down. These measurements set you up for about 4.5-5.5* castor