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Miscellaneous Automotive
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Anyone fought death wobble in an xj?
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<blockquote data-quote="VWBobby" data-source="post: 7294372" data-attributes="member: 624844"><p>I'm not a Jeep guy but I know a lot about setting up suspensions.</p><p></p><p>If the spring is restricting your steering or binding up the knuckle, that is a serious issue. Either it will bang into the spring on bumps/braking and cause a bump-steer effect (sudden diving different directions) or it will restrict the turning circle.</p><p></p><p>2 major factors in bump steer are toe-in and caster. Most vehicles respond better to at least 1/4" - 1/2" of toe in. It depends on how flexible the suspension is. If the toe in changes a lot during braking or turning, you might need more.</p><p></p><p>Caster affects your steering angle of the wheels. How vertical the knuckles are in relation to the suspension.. If they are too straight (0 degrees caster) then the car will tend to understeer. If there is too much caster, the car will try to oversteer or dive and bump steer.</p><p></p><p>Although rare, wheel balance can also cause a death wobble. If you wheels are out of balance, you can get odd vibrations and weird handling at a specific speed or range (30-35MPH for instance). The VW Superbeetles in '73-79 are known to have the "supbeetle shimmy" at 30-35MPH due to worn suspension. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Only way to correct it is to have VERY well balanced tires or perfect (new) suspension. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif</p></blockquote><p></p>
[QUOTE="VWBobby, post: 7294372, member: 624844"] I'm not a Jeep guy but I know a lot about setting up suspensions. If the spring is restricting your steering or binding up the knuckle, that is a serious issue. Either it will bang into the spring on bumps/braking and cause a bump-steer effect (sudden diving different directions) or it will restrict the turning circle. 2 major factors in bump steer are toe-in and caster. Most vehicles respond better to at least 1/4" - 1/2" of toe in. It depends on how flexible the suspension is. If the toe in changes a lot during braking or turning, you might need more. Caster affects your steering angle of the wheels. How vertical the knuckles are in relation to the suspension.. If they are too straight (0 degrees caster) then the car will tend to understeer. If there is too much caster, the car will try to oversteer or dive and bump steer. Although rare, wheel balance can also cause a death wobble. If you wheels are out of balance, you can get odd vibrations and weird handling at a specific speed or range (30-35MPH for instance). The VW Superbeetles in '73-79 are known to have the "supbeetle shimmy" at 30-35MPH due to worn suspension. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Only way to correct it is to have VERY well balanced tires or perfect (new) suspension. [IMG]//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif[/IMG] [/QUOTE]
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Anyone fought death wobble in an xj?
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