Bump Steer? - JeepForum.com

 
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post #1 of 5 Old 01-24-2002, 07:16 PM Thread Starter
Trucidus Sum
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Bump Steer?

What is Bump Steer? I hear everyone talking about it...but I dont know what your refering to...

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post #2 of 5 Old 01-24-2002, 07:29 PM
JeeperJay
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From what I gather it occours when your steering linkage is out of alignment due to a lift kit or bent drag link. This causes a push and pull effect in your linkage when your suspension moves up and down, causing the wheels to turn slightly whenever you hit a bump. A lift causes the drag link to go out of paralell with the tie rod. The only way i know to correct it is to replace the pitman arm with a longer or "dropped" pitman arm. A bent drag like will cause the same problem but its usually less noticable.

1992 YJ, 2.5L 4-banger, 2" Lift, 31x10.5 BFG Mud Terrain, K&N Filter, Restrictor Removed, Hi-Lift, Custom bumpers, More to come...
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post #3 of 5 Old 01-24-2002, 07:33 PM
JeeperJay
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Someone please correct me if I'm wrong, I'm new at this

1992 YJ, 2.5L 4-banger, 2" Lift, 31x10.5 BFG Mud Terrain, K&N Filter, Restrictor Removed, Hi-Lift, Custom bumpers, More to come...
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post #4 of 5 Old 01-24-2002, 10:13 PM
RodeoRob
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simply put? bump steer is when the wheels steer themselves without you turning the steering wheel.

what causes it? the tie rod out of alignment (ie, lots o lift). If the tie rod doesn't travel on the same arc as the front suspension, you'll suffer from bump steer.

-Rob

Robert Gorrell
1995.5 Isuzu Rodeo - SAS'd and SOA'd, sitting on 36x12.50 TSLs, D44 front, 14bff rear, locked by OX and Detriot, suspensions by Jeep and Chevy, high steer conversion, 5.13 gearing and Teralow in the case.
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post #5 of 5 Old 01-24-2002, 10:15 PM
RodeoRob
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Quote:
Originally posted by JeeperJay:
The only way i know to correct it is to replace the pitman arm with a longer or "dropped" pitman arm.
Drop pitman arms will work in less extreme cases, but if your angles are really steep, a high steer or crossover steering setup is typically done to minimize bump steer.

-Rob

Robert Gorrell
1995.5 Isuzu Rodeo - SAS'd and SOA'd, sitting on 36x12.50 TSLs, D44 front, 14bff rear, locked by OX and Detriot, suspensions by Jeep and Chevy, high steer conversion, 5.13 gearing and Teralow in the case.
robgorrell@yahoo.com - website
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