krawlingxj
NAXJA Forum User
- Location
- reno nv
I have a 5.5 inch lift and when im driving if feels like it jars or moves side to side on bumps is this normal or is somthing wrong? everything is tight and it has been aligned.
-
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Iron rock offroad lift handling
- Thread starter krawlingxj
- Start date
DeftwillP
NAXJA Forum User
- Location
- Round Rock TX
It's probably the caster adjuster folding in half.
:beatingdeadhorse:
Anyways, what he said.
:beatingdeadhorse:
Anyways, what he said.
srmitchell
NAXJA Forum User
- Location
- Mckinleyville (Humboldt) CA
LOL^
What control arm setup do you have?
Is it the steering wheel jerking? It could be an improper caster setting allowing for the wheels to dart around.
What control arm setup do you have?
Is it the steering wheel jerking? It could be an improper caster setting allowing for the wheels to dart around.
krawlingxj
NAXJA Forum User
- Location
- reno nv
I do not want an iro bash fest. we have enough of those. i do have a pitman arm drop the big one and the drag link is at less of an angle then the trackbar is.
srmitchell
NAXJA Forum User
- Location
- Mckinleyville (Humboldt) CA
That's most likely the problem. You want them as close to parallel as possible.
guys... bump steer is unavoidable on a solid axle, and I'd say your caster adjustment has more to do with bump steer than the angle relationship of your trackbar and draglink. A drop pitman is necessary to preserve the TRE, that's about it, I wouldn't suggest an OEM one at that height.
Unless you have experienced this yourself and can comment about circumstances of the incident; get off the band-wagon and stop propagating rumors...
DeftwillP said:
Unless you have experienced this yourself and can comment about circumstances of the incident; get off the band-wagon and stop propagating rumors...
DeftwillP
NAXJA Forum User
- Location
- Round Rock TX
Jesus H,
Get your sarcasm meters checked people. Didn't the beatingdeadhorse thing make it clear I was joking?
Sent from tapatalk on iJunk
Get your sarcasm meters checked people. Didn't the beatingdeadhorse thing make it clear I was joking?
Sent from tapatalk on iJunk
[QUOTE =s14unimog;245312245 guys... bump steer is unavoidable on a solid axle, and I'd say your caster adjustment has more to do with bump steer than the angle relationship of your trackbar and draglink. A drop pitman is necessary to preserve the TRE, that's about it, I wouldn't suggest an OEM one at that height QUOTE]
Castor won't cause bump steer, it will cause wondering and a loose feel. With the drop arm his angles are all off so when he hits a bump the suspension compresses in a different ark in relationship to the drag link and track bar causing the easiest thing to give, the steering wheel.
Edit: Dang it messed the quote thing up!
Castor won't cause bump steer, it will cause wondering and a loose feel. With the drop arm his angles are all off so when he hits a bump the suspension compresses in a different ark in relationship to the drag link and track bar causing the easiest thing to give, the steering wheel.
Edit: Dang it messed the quote thing up!
^your image didn't come through, that's why. I'm just fresh out of that IRO bash thread and I can see someone stumbling across this thread in the future and misunderstanding your sarcasm.
bump steer doesn't mean the steering wheel turns from a bump. Bump steer is a direction change caused by the change in the contact patch of the tire and angle of contact; or so I thought? I do see what you are saying about the angles though, if the axle is allowed to move in a different arch then the axles movement won't move the spindles the same. At some point you have to drop the pitman b/c you'll trash TRE's if you exceed their range.
srmitchell
NAXJA Forum User
- Location
- Mckinleyville (Humboldt) CA
I recognized it. :cheers:
It could be both the caster, and the drag link.
I don't think bumpsteer is inevitable, mine has pretty bad caster (because the front driveline was vibing) but it's doesn't have a bad feel over bumps.
put the stock pitman arm back on. I have 5.5 coils with v8 grand cherokee steering and have plenty of movement in my TRE before its maxed out. Having your angles off will cause bumpsteer, which is exactly what your experiencing. It can also induce death wobble.
:huh:
What causes bump steer has already been addressed.
The drag-link and track-bar must be the same length and sit at the same angle. If there is any difference between the two, bump steer will occur.
This is why Jeeps originally came with steering stabilizers. There was no way to package a track bar, that was the same length as the drag link, under the 4.0 at stock height.
A properly built steering setup will need no stabilizer, and there will be zero bump steer.
Please, please, please, and I mean this in the nicest way possible...
SPOBI!
(In this an other threads recently)
As it has already been corrected, bump steer can and is eliminated with a proper setup.
krawlingxj
NAXJA Forum User
- Location
- reno nv
I will put the stock pitman arm on tonight and see what happens.
vetteboy
NAXJA Forum User
- Location
- morganville, nj
Aww man...this started off so promising.
The stabilizer has *nothing* to do with correcting bumpsteer. It's a damper to help absorb oscillations in the system and also help deal with 'peak' loads in the steering. A properly-built aftermarket system will usually not need one because the components are rigid enough to avoid those oscillations in the first place.
And x2 on what RCman posted - to say bumpsteer is unavoidable on a solid axle is a very ignorant statement.
krawlingxj
NAXJA Forum User
- Location
- reno nv
Stock pitman arm Fixed it! Thanks everyone!
hadfield4wd
NAXJA Forum User
- Location
- Roanoke, VA
Holy misinformation batman. You need to look at how suspension dynamics work. Please refrain from posting until you actually know what you're talking about.
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