'02 TJ with i4 -- Mid Life Crisis

[Wingman]

If you are going to do control arms, bite the bullet and long-arm it.  No sense throwing money at it more than once...

[KingtheZJ]

custom m4 3 link front with polly bushings on end and currie jonny joints on the other. new trak bar with heims both ends.

[Wingman]

Custom m4 3 link front with poly bushings on end and Ruff Stuff heims on the other. New track bar with heims both ends.

FIFY

[Harrison]

How bad is the wobble?

Tire inbalance and whooped control arm bushings together can give you a good wobble. Shakes the change in the ashtray and you can see the stuff in your passenger seat shaking. That type of thing.

Death wobble is holy shit, pull over to the side of the road to collect yourself and wonder how your front axle is even still connected to your Jeep after such an incredibly violent occurance.

Which would you say you have?

[Harrison]

Smike, sorry if this was stated earlier, but did you check the castor?

[M4wdFab]

no, but id guess it be like 3-4 instead of 7 because of the lift

I like toe to be 1/16" to 1/8" on the tread of a 33"

1/4" on a 40"

[jaysenodell]

Harrison, I stopped so the dog and I could change our shorts. This is the type where other cars are flashing at you and diving for the side of the road so you don't kill them. Serious DW.


Castor was off. Can't find the report from the alignment place. I want to say if was under the min spec.


I did adjust toe to remove a bit of wiggle with the 33s. 31s were checked for balance before going back on. I'll be doing a "garage toe adjust" here in 60 minutes or so.

[jaysenodell]

I like toe to be 1/16" to 1/8" on the tread of a 33"

1/16th ok for 31s?

[Harrison]

When other cars can tell something is wrong, yes that is definitely death wobble hahaha

I'd be interested to know what the castor actually was. With front end parts either inspected or replaced by M4, I'm suspicious

[mr.mindless]

weak caster spec plus whooped CA bushings could add up to badness... not sure about full on DW unless they are seriously sloppy though

[M4wdFab]

the only CA that was even close to the smallest amount of play  was the upper pass front at the axle.  it was by way better than most jeeps i see regardless. 

[jaysenodell]

Mike has been looking at it. nothing seems loose. I'm hoping it is just a difference in toe between the 33 and the 31. It's a bit concerning that it never really "goes away" just lingers in the background. For the record here's what mikes done:
wheel bearing passenger
ball joints (all)
multiple check overs


I replaced
tre at the pitman
full zj upgrade for tr/tre


Mike looked it over last on 11/19. We checked springs, shocks and the normal stuff. not sure what else is left other than wheels control arms.


There's always Mark's option...

[jaysenodell]

Life lessons from MLC:


1. Don't question the wife. She can make life miserable.
2. Don't question Mike. He's going to be right so just do what he says.
3. Just because it's a 4 banger doesn't mean you can't have fun.


That last one was gratuitous.


Mike, set toe to 0 to get it from OH CRAP!! to Eh. Anything else was bad. Even at 0 there is a distinct "let me kill you" under the surface. Something isn't quite right but it can wait.


To that "something isn't right" add this: measure toe, lower vehicle, raise vehicle, measure toe. Doing just that and changing touching nothing else, the measurement changes. Largest difference was 5/8". how could it be changing if I have the adjusting collar locked and am only touching the jack? It it matters the jack is a 6ton bottle and I'm putting it at the mid point of the axle.


I'm getting closer to agreeing with Mark after this.

[M4wdFab]

you have to sit the axle on two jack stands close to level, and close to the ground is best. 

articulating the axle will effect steering rods angles, and with your steering that effects toe.

[jaysenodell]

Mystery explain. It will be quicker next time.