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Major bump steer!!!!!!!! Need a fix

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Old 11-30-2010 | 05:14 PM
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Default Major bump steer!!!!!!!! Need a fix

Ok Since i bought my truck it had really really bad bump steer. The truck is an 05 crew cab. I bought brand new tires, bilstein hd shocks, cut the bump stops and it's still terrible. the truck has no lowering components as far as i can tell. However it does a 2'' drop shackle, and the previous owner (idiot) took the load leaf spring out, to bring the rear down more. I 'm gonna replace it once i get a chance. I know that is contributing to the problem. What else could cause this?
Old 11-30-2010 | 06:23 PM
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how new are the shocks?
you shouldnt have any bumpsteer unless you modified the suspension
it it aligned properly
do you have heavy rims? too much unsprung weight
Old 11-30-2010 | 08:04 PM
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I bought the shocks brand new. As far as i can tell the front suspension is stock. Also still rolling on the factory 17(the ugly chrome ones) lol. i do need an alignment, but its not out terribly bad.
Old 11-30-2010 | 08:30 PM
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maybe you can explain what happens
how do you know how bad the alignment is? id start there
one bump of the curb can throw it out
Old 11-30-2010 | 08:46 PM
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I have an 05 and if i hit pot holes or large bumps the truck practically jumps over to the side...i am lowered though but it is annoying.
Old 11-30-2010 | 10:39 PM
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Originally Posted by terravast4
I have an 05 and if i hit pot holes or large bumps the truck practically jumps over to the side...i am lowered though but it is annoying.


VERY and im not even lowered it in the front
Old 11-30-2010 | 11:24 PM
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Originally Posted by greenturtle05
Ok Since i bought my truck it had really really bad bump steer. The truck is an 05 crew cab. I bought brand new tires, bilstein hd shocks, cut the bump stops and it's still terrible. the truck has no lowering components as far as i can tell. However it does a 2'' drop shackle, and the previous owner (idiot) took the load leaf spring out, to bring the rear down more. I 'm gonna replace it once i get a chance. I know that is contributing to the problem. What else could cause this?
Is the truck 2 or 4 wheel drive? Any chance you could post up a pic?
Old 11-30-2010 | 11:53 PM
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How are the tie rod ends? Idler and pitman in good shape?(If its 4wd)
Old 12-01-2010 | 05:10 AM
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steering parts wear whats the difference if its 4x or 2x, worn parts will do the same
a bad alignment means the suspension geometry is off, and constantly changing

if your hitting bumps and the truck jumps around its either shocks or springs
in my experience the stock springs wear out and so goes the spring rate, and that means your suspension cannot control its self, springs not only hold the trucks weight up but it pushes the wheel down to follow the road
look at lifted trucks, most have tire cupping, caused by an imbalance in the suspension, usually its springs sometimes its shocks

i had the jumping around for a long time, i changed the shocks and felt no difference
i changed springs and it fixed the issue
Old 12-01-2010 | 05:20 AM
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Originally Posted by terravast4
I have an 05 and if i hit pot holes or large bumps the truck practically jumps over to the side...i am lowered though but it is annoying.
lowering springs have a lower spring rate compared to stock, they have to be that way cause there is no way of adjusting height, if we could adjust height say with a coilover then the rate could be any number
if you have ever looked at springs side by side a lift spring will be the same length as the stocker and a drop spring but the thickness of the coils will be different


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