4 Link Question
#1
Junior Member
Thread Starter
Join Date: Apr 2012
Location: Boise
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
4 Link Question
So I'm in the middle of building a daily driver / desert trail vehicle. No rock crawling. For suspension, I'm running 4"BDS coils and leafs and I'm ready to upgrade the stock control arms. I was planning on getting an Iron Rock Offroad Subframe http://www.ironrockoffroad.com/Merch...egory_Code=XSP, mount lower long arms and adjustable uppers mounted in factory position.
So my question is, will this work? I can't tell where the uppers on the 4-link long arm kits mount (such as Rock Krawler's long arm kit). The more I got to thinking about it, I'm not sure the shorter upper, long lower will work very good.
Any opinions or experiences in this area?
So my question is, will this work? I can't tell where the uppers on the 4-link long arm kits mount (such as Rock Krawler's long arm kit). The more I got to thinking about it, I'm not sure the shorter upper, long lower will work very good.
Any opinions or experiences in this area?
#2
CF Veteran
Join Date: Feb 2010
Location: La Habra, CA
Posts: 1,152
Likes: 0
Received 1 Like
on
1 Post
Year: 1988
Engine: 4.0 RENIX
i don't have experience with that kit or any similar kit, but just bear in mind that the stock control arm setup is like that, with shorter uppers and longer lowers, so i would imagine that setup isn't totally bad.
#3
Former Sponsor
Join Date: May 2010
Location: meriden Ct
Posts: 2,181
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Why do you want to use the factory location for the uppers?
If your going to buy the IRO kit, just use the radius arms.
Having that much length difference in the arms is going to do bad things to the pinion angle while the suspension cycles through its range of motion.
If your going to buy the IRO kit, just use the radius arms.
Having that much length difference in the arms is going to do bad things to the pinion angle while the suspension cycles through its range of motion.
#5
Senior Member
Join Date: Jun 2010
Location: austin texas
Posts: 524
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Ok obviously you and everyone else here are confused. You can not see where the uppers mount cause they mount on the lowers with this type of kit.
#7
Still a bad idea as it'll wreak havoc on your pinion angle throughout axle travel.
Trending Topics
#8
Former Sponsor
Join Date: May 2010
Location: meriden Ct
Posts: 2,181
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
#10
Junior Member
Thread Starter
Join Date: Apr 2012
Location: Boise
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Yeah, Teraflex and Rock Krawler both seem to have kits like that. I'm just trying to figure out where the uppers mount to the body on those kits. I agree with everyone else, I think your pinion angle would be flopping up and down throughout the stroke, which probably wouldn't be that bad for slow rock crawling, but would be real bad going 70 mph through the desert.
#12
Senior Member
Join Date: Jun 2010
Location: austin texas
Posts: 524
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
#13
Senior Member
Join Date: Oct 2011
Location: near Chattanooga, TN
Posts: 845
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1995
Model: Cherokee
Engine: 4.0L HO
It's not a big step to go from a cross member like the IRO, made for radius arms, to a 3 or 4 link. You nly need one or two upped mounts added.
No, don't used the short upper and long lower set up. It'll work fine as long as your suspension doesn't move, but KTM's right, it'll create large issues very quickly as the suspension cycles.
I'll look for the diagram I saw that clearly outlines what happens with different length arms. I'll give you a big arrrrg if you find it.
No, don't used the short upper and long lower set up. It'll work fine as long as your suspension doesn't move, but KTM's right, it'll create large issues very quickly as the suspension cycles.
I'll look for the diagram I saw that clearly outlines what happens with different length arms. I'll give you a big arrrrg if you find it.
#14
CF Veteran
Join Date: Apr 2011
Location: Maine
Posts: 1,173
Likes: 0
Received 3 Likes
on
2 Posts
Year: 1999
Model: Cherokee
Engine: 4.0 inline 6
why not just get the long arms with the cross-member. I am running them and so far i'm impressed. BUT, if you don't want to run them, like stated above, the crossmember is made for a radius arm setup. and it made for a heim joint(not sure if a regular sized control arm bushing will fit or not).
#15
Senior Member
Join Date: Oct 2011
Location: near Chattanooga, TN
Posts: 845
Likes: 0
Received 2 Likes
on
2 Posts
Year: 1995
Model: Cherokee
Engine: 4.0L HO
The short upper arm will pull the axle the exact opposite rotation as the bottom diagram, bind/break your drive shaft u-joints at best. Do it right if you're going to do it. Keep reading, you're not there yet.