doaxj

ok here goes, please stop the eye rolling and boos. installed an rc 4.5 lift followed the intructions to a t. got my tires and rims balanced the day before i lifted the xj. i put stock tires on it. for 2 days due to waiting on wheel adapters. day 1 perfect no issues. day 2 death wobble on stock tires. day 3 installed adapters and the 33s i had balanced. more death wobble! took it and got it aligned was a lot better but still there at about 45-50 mph. put a new track bar on no difference. all my ball joints and tie rods look good to both me and the alignment shop. the bracketry is all tight so is the steering box. any other ideas guy?

asatxj

New LCA's? New UCA's? Find the DW thread and perform the checks on your Track bar etc. You may think the TB is tight but if you feel ANY movement it's not. What kind of TB? Did you check your hubs? The increase in problems with larger wheels and spacers makes me think it's the hubs. Do a search for how to test for that.
More info is needed if you want reasonable diagnosis. If you want a really good one you'll have to pull into my garage. Report back with more info and you shall receive more in return.

doaxj

thanks tx lol ur a lil far though. sorry new lowers stock uppers. problem didnt increse with the larger tires it satyed the same but got quite a bit better after the alignment. track bar replacement had zero effect. its also torqued down right. hubs maybe thats the next thing ill be checking. but other than that or it still being out off alignment im confused big time.

doaxj

oooos sorry as for the track bar install i followed the directions fron rough country and drilled the hole back. i just replaced it with a heavy duty moog replacement. i will be ordering the adjustable asap just wanted to see if i could fix it today.

SeriousOffroad

Caster and toe-in are out of spec.

doaxj

im being told that the alignment is in factory specs. what should i have the toe in set to? caster?

ZachsXJ

correct me if I'm wrong Frank, but the castor should be set to 0 degrees meaning that your upper and lower ball joints are directly in a vertical line. and I believe the toe in should be 2-3 degrees. Frank knows for sure, so wait on him for the toe in info.

asatxj

Don't know the degrees of toe in but it should be 1/8 inch
Go Jeep's site has a great write up on alignments.

SeriousOffroad

SPECIFICATIONS
ALIGNMENT
NOTE: All alignment specifications are in degrees.
CASTER
PREFERRED + 7.0°
RANGE + 5.25° to +8.5°
MAX RT/LT DIFFERENCE 1.25°
NOTE: Changing caster angle will also change the
front propeller shaft angle. The propeller shaft
angle has priority over caster.
CAMBER(fixed angle)

PREFERRED − 0.25°
RANGE − 0.75° to +0.5°
MAX RT/LTDIFFERENCE 1.0°

TOTAL
TOE-IN
PREFERRED + 0.25°
RANGE MAX RT/LT 0° to +0.45°
DIFFERENCE .05°

doaxj

ok so heres what ive concluded so far. lifted the jeep and drove it before it got aligned (dumb i know) got death wobble. aligned it and the wobble got better but not fixed. replaced track bar no effct but noticed the hole on the mounting bracket was oblonged due to the death wobble i assume. replace the steering stabilizer today and tighned the crap outta the track bar and most of it has went away. going to fab a new mount and im hoping this takes care of the rest. thoughts????

ZachsXJ

Most likely that oblong hole in the track bar mount is whats causing your issue. Fix that and you should be good to go