Anyone know the Caster Setting for a 2" lift???

L33TJ33P

New member
After MUCH research I have found something that could be causing my "Death Wobbles"

From htt://www.bigredheep.com
Caster:

Caster is the measurement of the forward/reward tilt of the steering yokes on the axle housing. Caster is adjustable onWranglers, for TJs the upper control arms in the suspension are either lengthened or shortened to adjust caster.It is critical and if not within proper adjustment can render a TJ undriveable do to a condition called "death wobble" or exibit driveline vibrations because the caster directly effects pinion angle. Caster is measured in degrees from vertical while looking at the balljoints from the side. ***

Pinion Angle:

Pinion angle has nothing to do with steering and little to do with alignment other then the caster measurement and adjustment. I hope you have a good idea of what caster is, as you increase your caster you (unless you are custom building an axle) are tilting your pinion down. This becomes and issue on lifted TJs as the factory caster setting is +7* and with 4" of lift and +7* caster you will have vibrations due to your pinion angle. The cause of this is a poor alignment tech that can only look up the specs for your model STOCK, as it is lifted this needs to be accounted for and unfortunately that means you need to make sure the tech makes the correct adjustments. ***

*** It is my experience that these items are kind of "set it and forget it" as in once you have set these properly something has to go pretty wrong to knock them out of whack. ie. Bent control arm or axle housing or a lift kit has been installed.


Now, Anyone know the setting?

OR

Is this going to be a "Shoot from the Hip" exercise??
 

Caster spec will be same as stock. If you can't get it with stock control arms, you'll need adjustible, but you should be okay at 2" of lift.

There are numerous things that cause DW, my sympathies to you.
 
1995 wrangler top question

I am fighting road wander also. I just replaced the lower steering shaft on my 81 cj7 which made a large improvement. I was going to replace my power steering gearbox when i noticed quite a bit of play in the u-joint of my origional shaft. I just bought a factory replacement ($100) which should last me another 20 years I hope :)

have also set in just a touch of toe-in (measured on my 33" tires i set 3/4 of an inch) which helped my stright line driveability. i would like to increase my caster by a couple of degrees to see if i can get back that "wheel returns to center" fealing, if i start a turn i can let go of the wheel and just continue that turn forever.

anyway, let me know how your caster setting goes,
Brad.
 
Poll about Jeep people

You can get a magnetic base angle finder pretty cheap. Try Harbor Freight tools. Then find a buddy with a stock Tj and hang the angle finder on the knuckle for the measurement.
If that doesn't work then put full hydraulic steering on there. Hydro doesn't care where the caster is set and won't wander. I have Scout axles that I did not cut and turn to correct caster. It drives like a Vette except that you have no "return to center." It isn't for everyone though. You have to know what you are doing when you size the hydraulics or you can get steering that is too quick on the road.
 
Back
Top