Why is my front end sitting higher than the rear after control arm install?

Breto31

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I have another thread going about replacing my front control arms, that has now morphed into a thread about my ride height, so I thought it would be simpler to start a thread specifically about my ride height.

A little backstory - I bought the jeep with the 4” suspension lift already on it. It was determined, via measuring and some phone calls, that my lift is 4”. I put Rancho RS5000X shocks (for 4” lift) on, and have had no issues.... Last week I installed new front adjustable control arms from Core 4x4 (T1 model). I installed 3 myself, and had the 4th done (passenger front/upper) at a local auto shop because I couldn’t get the bolts to line up, and I had a rounded nut that I couldn’t get off. While there, they also installed 4 new ball joints.

When I picked up the jeep the front end was sitting noticeably higher. The front end of the jeep was also riding VERY bouncy, and it had not been like that previously.... I started looking around, and I noticed that the front shocks now had about 7” travel exposed on the passenger side, and about 6.5” exposed on the driver side (travel may not be the right term, but I’m speaking how much of the actual shock is exposed - MUCH more extension that I had previously. It’s like every bump is exacerbated now, and it was to the point where myself (and my wife and daughter) didn’t want to ride in it anymore.

I got my tape measure out and measured the springs. They’re now sitting at what is the equivalent of a 6” lift (18” from top-to-bottom). Like they’ve been stretched or something. The rear is still sitting at the equivalent of a 4” lift.

Anybody have any ideas? I know CA’s are not supposed to affect the ride height, so I’m really confused as to what could have changed causing the front to ride so much higher.
 
Loosen all of the control arm hardware at both frame and axle. Re-torque to spec with the Jeep on the ground at ride height.

Likely that the arms were tightened with the axle at full droop.
I hope it’s this simple 🤞🏻
 
Yep, should always torque control arms under the weight of the Jeep.
 
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What about the trackbars? Asking for a friend that's about to install a rear axle along with new control arms & trackbars....
Also on the ground under load, otherwise there will be droop and the distance will be wrong
 
Yep, should always torque control arms under the weight of the Jeep.
No, that only applies to arms that have joints that use Clevite style bushings where the bolt sleeve is bonded to the isolation element. A joint like the Johnny Joint has a bolt sleeve that turns inside the isolation element and they don't care when you tighten the bolts. Rod ends are the same, doesn't matter.
 
No, that only applies to arms that have joints that use Clevite style bushings where the bolt sleeve is bonded to the isolation element. A joint like the Johnny Joint has a bolt sleeve that turns inside the isolation element and they don't care when you tighten the bolts. Rod ends are the same, doesn't matter.
What arms are the OP running?
 
#semantics... So untorquing and retorquing my CA’s under weight should still fix my ride-height issue? Mine don’t have JJ, so it should still fix the problem.
 
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If it is semantics, then you don't have to do anything, look elsewhere for the issue.

My CA don’t use JJ, so I’ll try the recommendation. Can’t hurt anything. Hopefully that’s the fix. Thanks for the help, and I’ll let you guys know once I get it completed to see if it’s fixed.
 
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Doesn't matter, you stated that you always have to torque with the weight on the rig. The always part is wrong.
I agree. I was just asking another question. If the OP had a JJ, it wouldn't be sitting at 6" of lift.

As an aside, most at home garage mechanics are going to torque suspension components down on the ground under the weight of the Jeep, and you can'g really go wrong there.
 
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I agree. I was just asking another question. If the OP had a JJ, it wouldn't be sitting at 6" of lift.

As an aside, most at home garage mechanics are going to torque suspension components down on the ground under the weight of the Jeep, and you can'g really go wrong there.

You’re right. The three that I installed or torqued while the jeep was on the ground, but the fourth one then I had installed I’m sure it was done on a lift. I had also asked them to check my bolts and make sure they were properly torqued, so if he torqued one on the lift, he did them all on the lift.
 
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You’re right. The three that I installed or torqued while the jeep was on the ground, but the fourth one then I had installed I’m sure it was done on a lift. I had also asked them to check my bolts and make sure they were properly torqued, so if he torqued one on the lift, he did them all on the lift.

Honestly if that's what it turns out to be I'd never go back to that shop. If they screwed up something as simple as that I sure wouldn't trust them with anything else.
 
Honestly if that's what it turns out to be I'd never go back to that shop. If they screwed up something as simple as that I sure wouldn't trust them with anything else.

Regardless of what the cause is how could that shop turn your Jeep back over to you with the front sitting 2 inches higher than the rear when it did not come in that way?
 
Honestly if that's what it turns out to be I'd never go back to that shop. If they screwed up something as simple as that I sure wouldn't trust them with anything else.

I won’t be using them anymore. I’m planning to try to loosen everything tonight and see if it fixes it. Regardless, for other reasons (plus this) I won’t be using them. I used them because they are next door to my gym, so I can drop it off and workout while they’ve got it. Lesson learned.
 
Regardless of what the cause is how could that shop turn your Jeep back over to you with the front sitting 2 inches higher than the rear when it did not come in that way?

At the time I thought “maybe I’m just seeing it differently from this angle” or something like that. As soon as I drove it, I was like WTF.
 
Got under it tonight and loosened up all of the bolts on the Control Arms. I didn’t take the bolts out, just loosened them up. I stood on the bumper and tried to bounce it around. It’s so stiff. It’s almost like there’s no shocks at all. Would explain why it’s so bouncy. I stood on the rear, and it’s SO MUCH softer.

Not sure where to go from here.
 

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