Help with lift install....UPDATE.... - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 17 Old 08-11-2012, 08:04 PM Thread Starter
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Help with lift install....UPDATE....

So I finished installing 99% of the lift components on my Rubi today with the help of a couple friends.

At the end of the day when we put the wheels back on and set the jeep on the ground I am having height issues.

The left side is not equal to the right side....the front left is about 1 1/8 inch taller that the front right..

And the left rear is about 1 inch taller than the right rear.

I am at a loss as to what is the problem so I need some help here.

***All control arms and trac bars are installed and only hand tight***
***Sway bars are not connected***

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #2 of 17 Old 08-11-2012, 09:16 PM
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Quote:
Originally Posted by 1badjk View Post
So I finished installing 99% of the lift components on my Rubi today with the help of a couple friends.

At the end of the day when we put the wheels back on and set the jeep on the ground I am having height issues.

The left side is not equal to the right side....the front left is about 1 1/8 inch taller that the front right..

And the left rear is about 1 inch taller than the right rear.

I am at a loss as to what is the problem so I need some help here.

***All control arms and trac bars are installed and only hand tight***
***Sway bars are not connected***
This may seem like a silly questions but is your gas tank full? Also are all of the spacers still on top of the coils?
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post #3 of 17 Old 08-11-2012, 11:40 PM
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could you have put a front spring in the rear or vice versa
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post #4 of 17 Old 08-12-2012, 02:34 AM
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^check that but it would be pretty hard to do that lol. Check to see your front springs are seated on the perches.


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post #5 of 17 Old 08-12-2012, 03:18 AM
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sounds like most bases are covered...make sure springs are sitting correctly in the cup, the isolators are installed properly on the top of the spring, and there is no control arm bind... depending on the quality of the kit..the full gas tank could be an issue...but would hope not. post back when you figure it out..kinda curious myself. the FJCruiser i had was similar...some would lean, some would not. they sold shims to correct the lean, but no one could really explain it.

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post #6 of 17 Old 08-12-2012, 04:09 AM
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We're your new front or rear coils the same length before install? Sometimes things happen in the manufacturing or shipping process. Might be worth checking that too.
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post #7 of 17 Old 08-12-2012, 07:04 AM Thread Starter
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I will check the gas but I doubt that is the problem. I put the springs side by side before install and they looked identical so I don't think that is was a bad spring.

I will look into the control arm bind but none of the control arms are tight, just finger tight on the bolt at this time.

The front left spring does look like it might be off-centered at the top of the spring so I will readjust that this afternoon and see if that is the problem. I hope it is something that simple.

Any more insight would be appreciated...

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #8 of 17 Old 08-12-2012, 07:29 AM
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The only thing I would suspect that would make that much difference is if one of the spring isolators were removed.

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Mods -- 3.5" Rock Krawler front springs, 2.5 TerraFlex BB rear, Mopar D44HD/J8, OX Locker, RCVs, 37x12.50x17 Pitbull Rockers on ProComp 7069, AEV Premium front bumper, Smittybilt X2O 12K Comp winch.
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post #9 of 17 Old 08-12-2012, 08:25 AM
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You've got JK Lean. Theoretically caused by the gas tank on the passenger side of the JKU.

Mine leaned 1/2" on the passenger side when stock and after my lift. Two friends of mine, one with a lift and one stock, both have it. I put a coil spacer on the that side to even it out. If you've got adjustable sway bar links, you can also extend them to help.
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post #10 of 17 Old 08-12-2012, 10:12 AM Thread Starter
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Quote:
Originally Posted by ChrisR View Post
You've got JK Lean. Theoretically caused by the gas tank on the passenger side of the JKU.

Mine leaned 1/2" on the passenger side when stock and after my lift. Two friends of mine, one with a lift and one stock, both have it. I put a coil spacer on the that side to even it out. If you've got adjustable sway bar links, you can also extend them to help.
So if I have alot of gas in the jeep it is going to lean to one side??? I didn't recognize it when it was sitting stock?!?

So I should put 1" spacers on the passenger side to lift it up to match?? But then when I am low on gas it is going to sit high on that side?? This doesn't make sense, it has to be something else that could cause the jeep to sit croooked.

Probably worth a good google.....(for those of you that have seen the movie Campaign)

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #11 of 17 Old 08-12-2012, 11:17 AM
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Im just throwing this out there, but if your sway bar is disconnected your Jeep will lean, and will not self correct. Id try connecting the sway bar and give the Jeep a good shake and see what happens. Also did you measure acutal height differences or just "eyeball" it.
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post #12 of 17 Old 08-12-2012, 12:01 PM
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I'm not a believer that a full gas tank is the problem. That's just what most propose is the cause. I've never actually measured mine with a full and empty tank to compare. I've also got a dual battery setup that adds weight to the passenger side.

I put a 3/4" spacer above the front passenger coil. That seemed to level it out within a 1/4 inch... for a while. Then I lengthened the sway bar link about 1/4 - 1/2"... last time I looked, it seemed like it was leaning again. I'll need to measure again and see if I can level it. Maybe I'll check with a full and empty tank this time. It's a frustrating little problem we have.
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post #13 of 17 Old 08-12-2012, 02:11 PM Thread Starter
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I will try to connect the sway bar links and see if that improves the stance at all.

I also don't believe that the gas tank is an issue, I think that something might be in a bind or the fact that the spring is not situated just right might make the jeep sit funny.

I am about to spend the next couple hours going over everything once again and i hope to come to a conclusion before the end of the day.

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #14 of 17 Old 08-12-2012, 03:13 PM
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RK springs should not sag at all, esp immediately following install. I think you may have mixed and match the corners where you placed the springs, ie one front spring went to the rear, etc. Check the numbers on the springs and make sure they correlate with front and rear

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post #15 of 17 Old 08-12-2012, 06:54 PM Thread Starter
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So after more time spent on adjusting things I have brought the "lean" to only about 1/2" difference. I know it is a small number but when I look at the Jeep from behind in my garage it just seems so uneven. (It does level out when I sit in the drivers seat).

Do you think I should worry about this??

I still haven't hooked up sway bars but everything else is tight. I will hook up sway bars at the end of the week, I am waiting on my Currie Antirock for the front.

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #16 of 17 Old 08-14-2012, 08:15 AM Thread Starter
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So after much thought as to why my jeep is leaning to the passenger side I think I finally have an answer. I noticed that my rear axle isn't centered perfectly which leads to a short rear trac arm. Which in turn might mean that I have force pulling to the passenger side which could easily result in a 1/2" body lean.

Please correct me if you think I am way off before I crawl under the jeep today to readjust the rear trac arm!!!

2008 Unlimited Rubicon Black

RK 3.5 Max Travel:Fox Shocks:Fox Front Steering Stabilizer:Ace Front Stubby w/ Stinger:Ace Tubular Fenders:Ace Rear Bumper w/ Tire Carrier:Level 8 ZX Wheels:37-12.5-17 MTR-Kevlar:Engo 9K Winch:Currie Anti-Rock:Synthetic Winch Rope:6 panel sPOD:Rigid Lights:AEV Procal
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post #17 of 17 Old 08-14-2012, 09:10 AM
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I'd swap the springs from left to right and see what happens. Back in my TJ days, this was actually an instruction in OME's kit if you had an imbalance such as yours.


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