Default Bump steer 

Old 09-24-2011, 10:58 PM   1 links from elsewhere to this Post. Click to view. #1
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Is bump steer when the jeep shoots to a side on a bump? While driving, my steering is feeling good, except for this. When I hit a bump or rougher road, it's a crap shoot if I can keep her in the lines.. I have a dropped pitman, 3.5 lift, 35's. Thanks all, I'm getting closer!!!!!

 

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Default Re: Bump steer 

Old 09-24-2011, 11:57 PM   #2
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Yes sir it is. I am dealing with the same issue. Bumpsteer is an issue... also oversteer(loose) meaning the back end of the jeep wants to come around in a turn, then you have understeer which is its really tight or hard to turn. I have just had an SOA done and have 35X12.50X15s.... I can't stay in my lane above 45-50 mph and if I hit a bump I feel like i'm going to die ha..... good luck pal!

 

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Default Re: Bump steer 

Old 09-25-2011, 03:42 AM   #3
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Any solutions? Smaller tires(33's)?

 

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Default Re: Bump steer 

Old 09-25-2011, 06:56 AM   #4
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From searching posts, I see that I would need to reduce the angle of the drag link. I have a dropped pitman arm, the angle doesn't seem that bad. If I measure from top eye straight down to the level of the second eye, this will tell me if it is 3 inch etc? I am not for sure on the lift height, maybe I need a longer pitman?

 

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Default Re: Bump steer 

Old 09-25-2011, 08:40 AM   #5
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get rid of the drop arm and do the flip you will have a better angle and gain back some of your steering radius.
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Default Re: Bump steer 

Old 09-25-2011, 08:41 AM   #6
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Bump steer happens when you have a lift. The drag link must be close to horizontal or you will have bump steer. If the drag link is angled too much imagine going over a bump and the suspension compresses. The axle (and right steering knuckle) are now closer to the steering gearbox. That forces the wheels to the right. Then when the suspension extends the wheels turn to the left.
The fix is to make sure the drag link is close to horizontal. Some do this with a dropped pitman arm but the best way to a tie rod flip. This puts the drag link on the top of the steering knuckle arm. Like this:
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Last edited by BusaDave9; 09-25-2011 at 08:47 AM..

 

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Default Re: Bump steer 

Old 09-25-2011, 08:56 AM   #7
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Like dave said you want the drag link to be on the same plan as the tie rod to get rid of bump steer. It should look like this.
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Default Re: Bump steer 

Old 09-25-2011, 02:24 PM   #8
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So I would need to flip the tie rod and the drag link at the knuckle. Is there a kit for this?

 

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Default Re: Bump steer 

Old 09-25-2011, 02:43 PM   #9
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Quote:
Originally Posted by Germy View Post
Is there a kit for this?
sure is Tie rod flip
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Default Re: Bump steer 

Old 09-25-2011, 09:08 PM   #10
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Old dog, you do know that you are helping with the install, right?!!!!!

 

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