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Unread 05-22-2013, 09:27 AM   #1
LBrook
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Reverse Rake

So, I've had a teraflex leveling kit on my 2 door JK for a few years now, and decided that it was time to get a few more inches of lift. I added 18/59 Coils to my JK. About 6 weeks ago. I feel like the front of my JK sits way higher than the back now. It doesn't seem level. I have a few questions about this set up..

Is it just me, or is there a legitimate reason that the front seems so much higher than the back?

How can I measure to see if everything is level? Should I measure from the bottom of the bumpers, fenders, frame, etc?

Is it safe to say I'm running ~3" of lift now? If so, what shocks should I go with?

Also sometimes when I hit bumps at speed (30-35mph) with this set up, my jeep goes into a death wobble that can only be stopped by completely stopping the jeep. Should I be thinking about a track bar bracket/ adjustable track bar or just a realignment?

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Unread 05-22-2013, 09:58 AM   #2
JTPhoto
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18/59 should on their own give you a level ride. If anything the back should be higher then the front. On my Unlimited it takes a 3.5" spring upfront to level my rear #59 with TF 2.5" spacer.
What height TF leveling kit do you have?
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Unread 05-22-2013, 10:48 AM   #3
jwmbishop
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Quote:
Originally Posted by LBrook View Post
Also sometimes when I hit bumps at speed (30-35mph) with this set up, my jeep goes into a death wobble that can only be stopped by completely stopping the jeep. Should I be thinking about a track bar bracket/ adjustable track bar or just a realignment?
You are not describing "a" death wobble. You are describing "the" death wobble (if the oscillations go away as you slow its not death wobble - its shimmy!).

Several things contribute - including "rake". When the vehicle is higher in the front the castor relative to frame is decreased (so sway has a greater effect on the centering that castor relative to road provides) - increased castor adds to the positive feedback side of the wobble equation. BUT thats not to say the rake is the CAUSE. The cause is the perfect storm of loose steering, ball joints, alignment, geometry, non dampening of the feedback etc. This is what makes it a challenge to correct.

There are threads up in the stickies that address wobble - take it step by step (do NOT assume just DO) and you should be able to work it out. As to the actual frame heights a body shop might inform you of the frame measuring points - I have a good relationship with my local body frame shop and they let me look through the books (its all on computer now lol) as needed.
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Unread 05-22-2013, 01:30 PM   #4
LBrook
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Quote:
Originally Posted by JTPhoto View Post
18/59 should on their own give you a level ride. If anything the back should be higher then the front. On my Unlimited it takes a 3.5" spring upfront to level my rear #59 with TF 2.5" spacer.
What height TF leveling kit do you have?
I have the standard Teraflex Leveling kit. 2" spacers in the front, 1" spacers in the back.
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Unread 05-22-2013, 01:42 PM   #5
MountainMan864
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Look up Carolina squat lol
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Unread 05-22-2013, 01:46 PM   #6
JTPhoto
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You can pull the front 2" spacers out and remove all together or replace with 1" and try that.. A little rake down in front is better then nose up..
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Unread 05-22-2013, 02:03 PM   #7
jwmbishop
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Quote:
Originally Posted by JTPhoto View Post
A little rake down in front is better then nose up..
You wouldn't say that headed towards a berm jump at 70 mph!!!
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Unread 05-22-2013, 02:25 PM   #8
A_Ninja_Racer
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You wouldn't say that headed towards a berm jump at 70 mph!!!
But you also Probably wouldn't be in a jeep!
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Unread 05-22-2013, 02:34 PM   #9
chesapeakesoja
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Quote:
Originally Posted by MountainMan864
Look up Carolina squat lol
Exactly what came to my mind as well :rofl
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Unread 05-22-2013, 04:05 PM   #10
LBrook
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Quote:
Originally Posted by chesapeakesoja View Post
Exactly what came to my mind as well :rofl
Haha unfortunately, that's what I feel like my jeep looks like right now.. I'm putting new shocks on soon. I think I'm going to pull one of the 1" spacers from the front when I put the shocks on.
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Unread 05-22-2013, 04:07 PM   #11
222Doc
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off road its better to have it a bit down then up. when you get virtical its the little things that mean the most.
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Unread 05-22-2013, 04:41 PM   #12
Scormunch
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When I put 18/59 springs in, I had to take out one of the two front Teraflex spacers so it would sit level.
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Unread 05-22-2013, 06:05 PM   #13
LBrook
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Quote:
Originally Posted by Scormunch View Post
When I put 18/59 springs in, I had to take out one of the two front Teraflex spacers so it would sit level.
Did you take both 1" spacers out on each side in the front? or just one 1" spacer per side on the front?
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Unread 05-22-2013, 06:15 PM   #14
Scormunch
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Correct. I left in one spacer per side and the rear spacers plus the springs.
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Unread 05-22-2013, 06:32 PM   #15
Thunderstrike
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Let us see a pic.
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