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Unread 08-02-2005, 12:54 PM   #1
cityofcompton3
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cj suspension

I have a 73 cj5 with a 4" suspension lift, reverse shackle, rancho 9000 shocks and a skyjacker suspension. My son is up in MI with the jeep and says the driver's side is collapsed, rubbing the fender flair while driving. According to him, the leaf springs look OK and the shakle is not fractured, but the driver's side is at least 3" lower than the other side. Rancho says its the leaf springs that hold it up so the shock isn't the problem, though it is completely compressed. Any guesses so I can order parts before I go up to join him?? Thanks much.

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Unread 08-02-2005, 01:03 PM   #2
Xrossed
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There are three things holding you up in the lift.
1. Shackles
2. Shocks
3. Leafs

If your droppped and the shackle isnt broken then the only thing that comes to mind would simply be the U-bolt stack. ( where the Leafs mount to the axle)

I'd go there.... chances are somethings dropped loose.
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Unread 08-02-2005, 01:05 PM   #3
jeepin cj-5
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Id say it has to be either the driverside spring or the shacle. tell him to compare the arc in the driverside spring to the arc in the passenger side spring. it coulkd look like it still has good arc but actually be alot less than what it suppoed to be. Also check where the shacle mounts to the frame.. it could have come loose or pushed up in there somehow.... did u ask what he was doing when it happened? seems kinda weird for that to just go out liek that.
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Unread 08-02-2005, 01:26 PM   #4
cityofcompton3
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cj suspension

Thanks for the suggestions, guys. I called up and he's checking this out. he also noted that both the shackles are at an angle toward the rear of the jeep, and I don't think that's right, aren't the std shackles 90 degrees to the frame?? I really appreciate the help guys.
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Unread 08-03-2005, 09:09 AM   #5
Mud Machine
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Shackles can be at any angle not necessarily 90 degrees. This depends entirely on the springs you have. Most importantly they should be the same on both sides. If not you have a problem.
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Unread 08-03-2005, 09:48 AM   #6
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The front shackles should be leaning out toward the front bumper. Like this / not this\
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Unread 08-03-2005, 10:07 AM   #7
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He said that he has a shackle reversal though. So the shackles for the front are in the rear of the leaf spring. In that case the shackles should be like this \ .

I like the broken u bolt theory.

Shocks don't hold anything up. ((If they are, it is a problem.)Unless they are coil over shocks)
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Unread 08-03-2005, 10:30 AM   #8
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Broken U bolts.. broken main leaf... caved in rusted frame...broken rusted frame
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Unread 08-03-2005, 03:28 PM   #9
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Quote:
Originally Posted by 5artist5
He said that he has a shackle reversal though. So the shackles for the front are in the rear of the leaf spring. In that case the shackles should be like this \ .

I like the broken u bolt theory.

Shocks don't hold anything up. ((If they are, it is a problem.)Unless they are coil over shocks)
Sorry I seem to have overlooked that part. Ditto to what bezrk said.
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Unread 08-03-2005, 08:21 PM   #10
dawgates
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My question is, what was your son doing when the suspension started to sag?

Is the body rusty at all? Body mounts?

It's one of thoughs things that just don't happen by itself.
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Unread 08-06-2005, 08:27 PM   #11
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Did you check the center pin, if it breaks then it may allow the spring to slide back some.
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Unread 08-08-2005, 09:08 PM   #12
cityofcompton3
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First of all, in my defense i was not driving the jeep when this happened. Several people are allowed to drive the jeep and it was like this when i got there.
Secondly, the jeep may have a shackle reversal, but shouln't the shackles still go like this /. If they went \ this way there would be nothing to push them back to a more vertical state. Once the leaf springs pushed the shackle to a more flat position they would stay like that. Don't shackles always have to go like / so that it pushes against the leaf spring.
Anyway i don't really know what to do, my father and i have checked just about everything we can think of that would be causing a problem. All the parts on the jeep that you suggest might be broken don't appear to be. The only thing we haven't done is start to take parts off, because we are in the middle of no where and don't really have a good place to work on it.
Lastly we talked to a guy, who offered this solution let us know what you think.

Remove the old shackles, leaf springs, ect. Weld on brackets to the frame and replace the old leaf springs with 1/2 ton truck leaf springs in the front. If you can see an problems with that solution let me know, thanks.
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Unread 08-09-2005, 10:32 AM   #13
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Well, it is possible we are getting confused with our slashes.
If we are looking at the driver's side of the jeep the front and rear shackles should be like this. \front rear\ They should go the same way, the frame attach point should be farther forward and the spring attach point should be farther rear.
You want the shackles to move rearward when the spring compresses.
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Unread 08-09-2005, 10:49 AM   #14
cityofcompton3
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well the shackles are going in your small diagrams direction slanted back towards the rear end. however, i guess i just don't get the mechanics of this, what would force the shackles back to a more perpendicular position in regards to the frame, rather than what is doing now. The shackles lying almost flat along the frame.
Typical JEEP
Frame(straight line)
__________________________________________________ _________
Front leaf spring mount | \ Leaf Spring Shackle


MY JEEP

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| __


That is hte best diagram i can make using these silly lines and stuff, either way the back shackles aren't springing back they pretty much stay flat like the second picture.
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Unread 08-09-2005, 10:50 AM   #15
cityofcompton3
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well that looks different than i wanted, either way the back shackle lies almost flat along the frame and has no bounce back
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