Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

wj knuckle swap question

Thread Tools
 
Search this Thread
 
Old Dec 1, 2013 | 02:20 PM
  #31  
mikeyjeod's Avatar
Thread Starter
Member
 
Joined: Apr 2012
Posts: 237
Likes: 0
From: savannah
Year: 1997
Model: Cherokee
Engine: 4.0
Default

This is the Wj set up with the xj steering on it. Is this catiwampus? Why won't this work ?

Thank you

wj knuckle swap question-forumrunner_20131201_151922.jpg
Reply
Old Dec 1, 2013 | 02:45 PM
  #32  
huntingman2706217's Avatar
MJ>XJ
 
Joined: Mar 2009
Posts: 17,836
Likes: 7
From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
Default

Can't see that on my phone...
Reply
Old Dec 1, 2013 | 02:50 PM
  #33  
mikeyjeod's Avatar
Thread Starter
Member
 
Joined: Apr 2012
Posts: 237
Likes: 0
From: savannah
Year: 1997
Model: Cherokee
Engine: 4.0
Default

I am also on my phone but I cam see it... I'll explain it lol
It has the xj steering connected to only the top spot of the knuckle. Looks super flat however.
Reply
Old Dec 1, 2013 | 02:50 PM
  #34  
94XjSport94's Avatar
CF Veteran
 
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Default

That picture looks freaky. I wouldn't personally ever run my steering like that. The knuckles aren't designed for that ether.
Reply
Old Dec 1, 2013 | 02:59 PM
  #35  
mikeyjeod's Avatar
Thread Starter
Member
 
Joined: Apr 2012
Posts: 237
Likes: 0
From: savannah
Year: 1997
Model: Cherokee
Engine: 4.0
Default

I agree now that I look at it a little closer.

Thanks for all the info probably gonna have more questions after
Reply
Old Dec 1, 2013 | 03:04 PM
  #36  
Demonoid369's Avatar
CF Veteran
 
Joined: Mar 2013
Posts: 1,023
Likes: 0
From: salem, OR
Year: 1997
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by huntingman2706217
Either raise the axle side track or get a less drop pitman arm, they are close ish but I can see they aren't parallel
Reply
Old Dec 1, 2013 | 03:06 PM
  #37  
94XjSport94's Avatar
CF Veteran
 
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Default

Looks about fine to me?
Reply
Old Dec 1, 2013 | 03:12 PM
  #38  
Demonoid369's Avatar
CF Veteran
 
Joined: Mar 2013
Posts: 1,023
Likes: 0
From: salem, OR
Year: 1997
Model: Cherokee
Engine: 4.0L
Default

Ruler it or how ever but ya it's not parallel, probably is some bumpsteer just not super noticeable
Reply
Old Dec 1, 2013 | 04:24 PM
  #39  
poorboy's Avatar
Member
 
Joined: Oct 2009
Posts: 105
Likes: 0
From: near Columbia mo
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Originally Posted by DieselD
thanks


Originally Posted by Jamie57
Full Size Jeep
Like a J10 or J20 or a wagoneer
thanks
Reply
Old Dec 1, 2013 | 04:45 PM
  #40  
huntingman2706217's Avatar
MJ>XJ
 
Joined: Mar 2009
Posts: 17,836
Likes: 7
From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
Default

Originally Posted by Demonoid369

Either raise the axle side track or get a less drop pitman arm, they are close ish but I can see they aren't parallel
I didn't post a picture because I have a problem.... I was showing Will how my setup is is and worth fine...

Originally Posted by 94XjSport94
Looks about fine to me?
It is!

Originally Posted by Demonoid369
Ruler it or how ever but ya it's not parallel, probably is some bumpsteer just not super noticeable
No bumpsteer... been like this almost two years and never a issue... been on the interstate at 80 many times also... no problem...

Web wheeling is one thing... if ya think it's gotta be down to the exact millimeter then ya probly read more then build... there's is lots of room to play there even though the Internet will make u think otherwise
Reply
Old Dec 1, 2013 | 04:52 PM
  #41  
Demonoid369's Avatar
CF Veteran
 
Joined: Mar 2013
Posts: 1,023
Likes: 0
From: salem, OR
Year: 1997
Model: Cherokee
Engine: 4.0L
Default wj knuckle swap question

Originally Posted by huntingman2706217
I didn't post a picture because I have a problem.... I was showing Will how my setup is is and worth fine...



It is!



No bumpsteer... been like this almost two years and never a issue... been on the interstate at 80 many times also... no problem...

Web wheeling is one thing... if ya think it's gotta be down to the exact millimeter then ya probly read more then build... there's is lots of room to play there even though the Internet will make u think otherwise
Nope just OCD lol I bet you though there is small amount of bumpsteer, just not noticeable to you. Like I said earlier, it would be probably unnoticeable.
It's not about web wheeling or real wheeling, it's to do with physics. Can't argue your way out of that.

Last edited by Demonoid369; Dec 1, 2013 at 04:54 PM.
Reply
Old Dec 1, 2013 | 05:11 PM
  #42  
huntingman2706217's Avatar
MJ>XJ
 
Joined: Mar 2009
Posts: 17,836
Likes: 7
From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
Default

Show me how physics says they must be identical...
Reply
Old Dec 1, 2013 | 05:54 PM
  #43  
Demonoid369's Avatar
CF Veteran
 
Joined: Mar 2013
Posts: 1,023
Likes: 0
From: salem, OR
Year: 1997
Model: Cherokee
Engine: 4.0L
Default

Because of the arc swing movement(not good at technical terms lol) being exactly parallel will allow for the suspension to cycle with no interference(bump steer) now if the length isn't the same or the bars are not parallel, there will be some interference, now as I said, you probably do have bump steer but because your links are fairly close to be parallel, you wouldn't even notice the bump steer because how small it is. Trying to find the calculator/input(like the suspension calc) that I saw and used years ago. Ill post it when I can
Reply
Old Dec 1, 2013 | 05:54 PM
  #44  
ohio95xj's Avatar
CF Veteran
 
Joined: Apr 2012
Posts: 1,659
Likes: 0
From: Dayton OH
Year: 1995
Model: Cherokee
Engine: 4.0
Default

Originally Posted by huntingman2706217
Show me how physics says they must be identical...
As the suspension cycles, both the track bar and drag link travel in An arch. If the angle/length of the two is different. It causes bumpsteer because the 2.try to follow different archs. And since the drag link us connected to a joint it causes the heel to steer.
Reply
Old Dec 1, 2013 | 06:01 PM
  #45  
Demonoid369's Avatar
CF Veteran
 
Joined: Mar 2013
Posts: 1,023
Likes: 0
From: salem, OR
Year: 1997
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by ohio95xj
As the suspension cycles, both the track bar and drag link travel in An arch. If the angle/length of the two is different. It causes bumpsteer because the 2.try to follow different archs. And since the drag link us connected to a joint it causes the heel to steer.
X2

also:

http://www.infrastructure.gov.au/roa..._COP_sec_5.pdf

http://files.meetup.com/4119962/Stee...ion-basics.pdf


first one is old school stuff but shows how different angle will cause different arcs

second is newer with showing both leaf and link suspension and saying and showing the same that if not parallel, the individual links will swing at different arcs and cause one side(the moving axle) to tilt(bumpsteer)
Reply



All times are GMT -5. The time now is 11:34 AM.