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need help, look at front suspension


 
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geldingmakr
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Joined: 04 Aug 2006

PostPosted: Fri Aug 04, 2006 3:56 pm    Post subject: need help, look at front suspension Reply with quote

ok, I bought an 89 jeep
saturday that has an SOA and 35" tires

I don't know how it was done, but now I have crazy steering
in s turn dips at 55mph.... scary...

every thing feel tight... no slop,,, but eratic steering.

can you review some pics and help me identify areas to address?
Thanks




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Code3TJ
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Joined: 01 Jan 2004
Location: Uzbekistan

PostPosted: Fri Aug 04, 2006 10:26 pm    Post subject: Reply with quote

55 MPH on 35's through turns is probably part of the problem but the main problem is bump steer. Your drag link and track bar should be parallel.
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shvlhd666
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Joined: 01 Jan 2005

PostPosted: Sat Aug 05, 2006 10:44 pm    Post subject: Reply with quote

A steering stabilizer wouldn't hurt either.
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geldingmakr
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Joined: 04 Aug 2006

PostPosted: Sun Aug 06, 2006 3:39 pm    Post subject: Reply with quote

ok, any idea what track bar and draglink I need? Thanks

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ehirner
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Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Sun Aug 06, 2006 4:40 pm    Post subject: Reply with quote

Code3TJ wrote:
55 MPH on 35's through turns is probably part of the problem but the main problem is bump steer. Your drag link and track bar should be parallel.

This is the problem. Notice how your draglink and trackbar are not parallel. That's caused by the roughly 5" of lift you gained with the spring over axle (SOA) conversion. It also looks like a drop pitman arm was installed. If you drop one, you need to drop the other. With leaf springs, you can often remove the trackbar. However, I'm not very knowledgeable about YJs so I don't know if this is something that should be done. Even if you can, you'll likely still have some bumpsteer (although it should be significantly better) because the axle will move one way and the steering will want to move another.

shvlhd666 wrote:
A steering stabilizer wouldn't hurt either.

That is not going to help.
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shvlhd666
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Joined: 01 Jan 2005

PostPosted: Sun Aug 06, 2006 4:45 pm    Post subject: Reply with quote

It might help if you guys explain to him what you mean by "drag link & track bar"

I would, but I figured I would let the really smart people do it.
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ehirner
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Location: Eastern PA

PostPosted: Sun Aug 06, 2006 5:15 pm    Post subject: Reply with quote

shvlhd666 wrote:
It might help if you guys explain to him what you mean by "drag link & track bar"

I would, but I figured I would let the really smart people do it.

How's this?

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shvlhd666
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PostPosted: Sun Aug 06, 2006 6:31 pm    Post subject: Reply with quote

you da man
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cojeep636
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Joined: 25 Jul 2005
Location: windsor, co

PostPosted: Sun Aug 06, 2006 9:31 pm    Post subject: fix... Reply with quote

well i have a rough country 3.5" suspension lift and without the parts they included i probably would have the same problem. all they had to send was a bracket that was about 3.5" tall that bolted to the axle and had provisions for mounting the track bar. if you need a pic of this or help finding one message me
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geldingmakr
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Joined: 04 Aug 2006

PostPosted: Mon Aug 07, 2006 9:33 am    Post subject: Reply with quote

great job ehirner!!! that helps a bunch.

so the drop pitman arm dropped the drag link...

do i just need a bracket to lower the upper connection of the
track bar until it is at the same angle as the track bar?
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ehirner
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Location: Eastern PA

PostPosted: Mon Aug 07, 2006 1:04 pm    Post subject: Reply with quote

geldingmakr wrote:
great job ehirner!!! that helps a bunch.

so the drop pitman arm dropped the drag link...

do i just need a bracket to lower the upper connection of the
track bar until it is at the same angle as the track bar?

I honestly don't know what's out there or what's recommended for YJs as far as parts go. I've got coils and a 5-link under my TJ so I'm not overly familiar with leaf springs. A lot of guys take off trackbars on leaf sprung vehicles. Leaf springs have significantly more side-to-side stability.
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geldingmakr
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Joined: 04 Aug 2006

PostPosted: Mon Aug 07, 2006 3:33 pm    Post subject: Reply with quote

hey YJ guys, should my temporary step be to run without the track bar?
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spankerbob
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Joined: 06 Aug 2006

PostPosted: Thu Aug 10, 2006 6:37 pm    Post subject: 35" bad steering Reply with quote

I have just lifted my YJ about 4.5" with leaf springs and also have 1.25" from the shackles so I get the crazy steering even with my 31" tires and pitman drop arm I think it is a combination of bad steering stabilizer and poor drag link angle, but I cannot find a longer pitman arm as of yet.
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spankerbob
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Joined: 06 Aug 2006

PostPosted: Fri Aug 11, 2006 5:31 pm    Post subject: oh yah I forgot Reply with quote

oh yah I forgot I took off the track bars front and rear, they were to short after the lift.
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kizer
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Joined: 02 Jan 2004
Location: Marysville, North of Seattle

PostPosted: Sat Aug 12, 2006 11:29 pm    Post subject: Reply with quote

As for the drop pitman arm you can start with an XJ stock pitman arm because its dropped more than a stock YJ before going to a dropped YJ.

I personally would stick with the trackbar and look into another trackbar mount "Welded" or change your pitman arm out because the angle is way to steep. shock
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