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Bump Steer With Djm A Arms


tburkdoll

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It is a very common term and as explained its when you hit a bump and wants to jerk the steering wheel left or right. My truck does it Tyler on factory a-arms too. Not sure if its excessive but you can feel it once and awhile. You will start to notice things like this more when you change the vehicles suspension and steering geometry.

 

Another term commonly used is torque steer found on FWD vehicles.

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Did you have your alignment checked or done after the install of the a-arms?

Usually bump steer is caused by the tie rods not being adjusted to the proper length to keep the correct geometry of the upper and lower control arms while compressing and rebounding on a bump. The wheel will be either toed in or out on entry and the oposite on rebound which causes the bump steer. A good alignment will clean most of this up. It can also be that some of the front steering and suspension parts are worn out and now they are showing their face after the a-arms. More than likely if you haven't gotten an alignment it would be the way to go.

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It was aligned right after it was installed. And i have recently looked under the truck and it looks that one of my tie rods is shot. I am going to replace it eventually. Considering replacing it with chromoly heim joint type tie rods. Angles can be fully adjusted with this type of tie rod. Anyone have input on these?

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That is more than likely the culprit then. Replace both of them when you do it. About the chromoly tierods I have been looking into them too but the price tag is kinds steep. I might make my own since I have almost everything I need for them.

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steering parts on these trucks wear somewhat fast and the tie rods are parts of the problem as well as pitman / idler arm and idler arm pivot assembly.

 

also wider /low pro tires will increase this as well

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