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Discussion Starter · #1 ·
Ok, here is the deal. I recently went to a high cross-over type (drag-link above spring to a Avalanche eng. arm, tie-rod in factory location) to try to eliminate an odd problem I am having on my front SOA D44 in my YJ. The draglink/tie rod are more or less parallel now. The problem I am having is that when I am going anywhere from 20-40 MPH and I hit a mild bump my tires start oscillating violently from left to right as well as the steering wheel. It is only stopped by slowing down to a close stop. I was hoping my new setup would correct this, but it is obviously a problem somewhere else. At what angle should the tie-rod arm on the knuckle be with the ground? Parallel? It is close, but could be better with some shims. My heims and ball joints(knuckle) are all fairly new with a minimal amount of wear. My next guess would be a worn out PS box which I am going to get rebuilt along with a hydro assist upgrade. Does anyone have any other suggestions?
 

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Actually you probably want a little angle on the draglink, also the angle of the drag link should be the same as the track bar and the same length as the track bar as well. If you are having oscillations I would check the Tie-rod ends and Draglink ends for wear. Also check the Ball Joints? on the knuckles and make sure they are in good shape as well. If the Tie-Rod Arm is close to parallel to the ground are you sure you have enough caster? if everything checks out you could have a worn steering box that needs rebuilding and it might be good to upgrade to a hydro ram assist setup <IMG SRC="smilies/thefinger.gif" border="0">
 

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You don't want the drag link parallel with the tie rod. You should have a slight angle on the drag link. Your caster may be off and your alignment may be off. What are you going real fast for anyway? Speed combined with poor alignment will cause it shake <IMG SRC="smilies/eek.gif" border="0">
 

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Go get an alignment and see if that helps. They will be able to tell you what your caster is too. You may need to check your toe-in.
 

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Discussion Starter · #7 ·
I set my toe-in myself to have about 1/8" or so toe-in. As for the caster angle, I would say it is definately positive and I tried to lower it with a shim, but maybe not enough. What is a good degree to shoot for? Is 0 parallel with the ground?
 

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Its called "Death Wobble" and it sucks ass...I have it too. Dont drive to much or you will warp your tires FAST! Get the allignment done, have the tow set correctly and check the tie rod ends. Those things solved mine <IMG SRC="smilies/smile.gif" border="0">
 

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sounds like a caster problem, and I've never heard of going of the tierod mount to measure that, i think thats your problem. You want about 6* and it sounds like your trying for 0 <IMG SRC="smilies/eek.gif" border="0">
 

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also High crossover steering would mean you moved the tierod and draglink up to the top of the knuckles <IMG SRC="smilies/biggrin.gif" border="0">
 

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I've got it too after Barret Lake warped my trackbar and the allignment is all to fawk <IMG SRC="smilies/frown.gif" border="0">

Just dont drive it till you get it alligned to be safe and save yer tires.

Good steering stablisers can be got from Rancho or OME. Explorer Pro Crap makes one too but I hear they dont hold up very well.

Colin
 
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