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  #13  
Old 12-16-2015, 10:51 AM
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Re: What's the highest quality leveling kit for a Wrangler JK?

Quote:
Originally Posted by Perfessor View Post
Can you explain why?
No. You have the SAME suspension as stock you just add a spacer so it sits a bit higher to clear a slightly bigger tire without damage to the fender or tire. A quality spacer that moves mounting of everything; springs, shocks, etc.. should be fine, as long as your not adding enough lift to jack with the suspension geometry. It should be fine and besides not everyone needs 4" of lift to clear 35 or 37 or 40" tires. If so, you're replacing gears and axles and much more and at that point $200 on a spacer lift compared to the $700+ for a true lift, the suspension is cheap compared.

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Old 12-16-2015, 12:53 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

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Originally Posted by CajunJK View Post
No. You have the SAME suspension as stock you just add a spacer so it sits a bit higher to clear a slightly bigger tire without damage to the fender or tire. A quality spacer that moves mounting of everything; springs, shocks, etc.. should be fine, as long as your not adding enough lift to jack with the suspension geometry. It should be fine and besides not everyone needs 4" of lift to clear 35 or 37 or 40" tires. If so, you're replacing gears and axles and much more and at that point $200 on a spacer lift compared to the $700+ for a true lift, the suspension is cheap compared.
A "quality spacer" is not going to change the spring rates or shock travel.
It's going to add stress to components engineered to be at a different ride height.
So will he be "fine"? Sure if he doesn't care about ride quality or premature failure of OEM components.

My opinion is do it right the first time and get yourself a quality lift that's engineered to work in harmony.
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Old 12-16-2015, 01:12 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

No offense.

According to a quick Google search -
"Spring rate refers to the amount of weight that is needed to compress a spring one inch. If the rate of the spring is linear, its rate is not affected by the load that is put on the spring. For example, say you have a 200 lb. per inch spring - it will compress 1” when a 200 lb. load is placed onto the spring"

What he is asking will not change the Spring Rate by definition. He DIDN't want to change out the springs, only level the rake. AND the kits like AEV have new shock adjustment mounts, so the front and rear shocks are also adjusted by the same amount as the spacer. So I find it hard to believe there will be additional stress unless one excludes those components. Even includes parts for the brake lines.

So help me understand where the stress will be if a spacer is added to the spring, the shocks have adjustment mounts, and the brake lines are adjusted.
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Old 12-16-2015, 02:18 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

A key is to determine any future mods you may want to make.

On my first wrangler ('97 TJ) I bought it bone stock and as soon as I had enough money for 31" tires I bought 'em, then as soon as I had enough money for a 2 ˝ " lift and 33s and regearing I bought 'em then I went to a 5 ˝" long arm lift and 35s and new axles and gears and a supercharger and so on.

I spent a lot more money than I needed to if I had just been less impatient and planned for my Jeeps future than immediate gratification.

14 years later I'm older, a little wiser and a lot more financially stable so I went all out for immediate gratification.

If I had bought a hard rock I already knew I was going to be making a lot of modifications, spending a lot of money and voiding a lot of the factory warranty to get back the same capabilities of my old TJ.

So instead I spent 66k and bought a 2015 JKUR AEV vehicle (JK350) That already had a 4 ˝" lift, skids, 37" tires, winch, swing out tire carrier etc. etc. and since I bought it that way from the dealership it's all covered under warranty. Of course I'll void some of that when the supercharger goes on before spring. (I didn't want to spend 89k for the hemi AEV as you lose the Rubicon's 4:1 with a hemi swap but with a supercharger plus cam and tune I keep 4:1 and gain the same horsepower. Different strokes for different folks)

If you know you only want to fit 33s and never plan to be able to hit all the trails/obstacles with your new Jeep buddies then great good for you spend a $165 bucks and call it good and done.

If you look to the future and want your Jeep to keep up with your new found adventure and enthusiasm then I suggest building/modding for the future.

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  #17  
Old 12-16-2015, 03:56 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

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Originally Posted by CajunJK View Post
No offense.

According to a quick Google search -
"Spring rate refers to the amount of weight that is needed to compress a spring one inch. If the rate of the spring is linear, its rate is not affected by the load that is put on the spring. For example, say you have a 200 lb. per inch spring - it will compress 1” when a 200 lb. load is placed onto the spring"

What he is asking will not change the Spring Rate by definition. He DIDN't want to change out the springs, only level the rake. AND the kits like AEV have new shock adjustment mounts, so the front and rear shocks are also adjusted by the same amount as the spacer. So I find it hard to believe there will be additional stress unless one excludes those components. Even includes parts for the brake lines.

So help me understand where the stress will be if a spacer is added to the spring, the shocks have adjustment mounts, and the brake lines are adjusted.
As I stated above the OEM components are engineered to work best at OEM specs. Raising the body AND adding heavier wheels/tires on OEM components will decrease the handling and cause premature wear.

You will have more body over the spring so that means more weight in addition to the rebound weight of the heavier wheel/tire combo.

It's more so engineering than Google.
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Old 12-17-2015, 07:04 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

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Originally Posted by MOFSTEEL View Post
As I stated above the OEM components are engineered to work best at OEM specs. Raising the body AND adding heavier wheels/tires on OEM components will decrease the handling and cause premature wear.

You will have more body over the spring so that means more weight in addition to the rebound weight of the heavier wheel/tire combo.

It's more so engineering than Google.
Would aluminum wheels and larger tires weigh more than the stock steel wheels and smaller tires and thus screw with the suspension tuning?
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Old 12-17-2015, 10:47 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

I don't see any issue with the Tera or AEV kits.

If you don't plan on going any higher in the future, you'll be fine. We can talk about engineering and weight until we are blue in the face. The fact of the matter is, this kit isn't going to shift nearly enough weight to be worth a damn. People carry hundreds of pounds of "gear" all over their Jeeps. Some have hard tops, some have soft tops...there is enough tolerance built in to handle minor modifications like this. That inlcudes going up a tire size or two. Do it...and maintain your vehicle like you should, and you won't have any issues. If you're really worried about unsprung weight in a 32" tire and OE wheel set up versus a 33 or 34" set up, consider the different wheel and tire combos offered on our JKs from the factory and how they range in weight. Keep it mild (which is what this kit is all about) and you'll be fine. These vehicles are designed and "engineered" to handle stresses much greater than what the average driver puts one through.
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Old 12-18-2015, 12:10 AM
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Re: What's the highest quality leveling kit for a Wrangler JK?

A leveling kit and a budget boost are basically 2 names for the same thing...and if you change the height of your Jeep, you've "lifted" it.

Regarding weight: broken into 2 categories: Sprung and unsprung weight. Wheels and tires represent unsprung weight and put a lot more load on suspension and steering components than sprung weight (like a hi-lift jack and winch). YES, 33" tires on aluminum wheels are heavier than 29" tires on 16" steel wheels.

Suspension and steering geometry is more than brake lines, springs and shocks. Jeep spent $millions getting their setup just right...and when you start screwing with it, you open yourself to potential risks. Upper control arms, lower control arms, tie rod, track bar, steering stabilizer, drag link, sway bar, steering shaft, driveshaft, etc...all of these components and their individual parts (bushings, balljoints, u-joints, rod ends) will face more stress and be subject to pre-mature wear when you jack up the suspension and steering geometry with even a small lift and slightly bigger tires. In my experience, these stresses are magnified in cold weather. The question you have to answer is when to say "I'm comfortable with my risk".

You can run 33" tires without a lift. You can also invest in a 1.5" lift that'll set you back over $2k and still have places to invest money on better components. Just don't throw a "leveling kit" on and then be pissed when you get death wobble or assume that because you aren't getting death wobble that nobody else will.




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  #21  
Old 12-19-2015, 07:25 AM
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Re: What's the highest quality leveling kit for a Wrangler JK?

Quote:
Originally Posted by ichthus View Post
A leveling kit and a budget boost are basically 2 names for the same thing...and if you change the height of your Jeep, you've "lifted" it.

Regarding weight: broken into 2 categories: Sprung and unsprung weight. Wheels and tires represent unsprung weight and put a lot more load on suspension and steering components than sprung weight (like a hi-lift jack and winch). YES, 33" tires on aluminum wheels are heavier than 29" tires on 16" steel wheels.

Suspension and steering geometry is more than brake lines, springs and shocks. Jeep spent $millions getting their setup just right...and when you start screwing with it, you open yourself to potential risks. Upper control arms, lower control arms, tie rod, track bar, steering stabilizer, drag link, sway bar, steering shaft, driveshaft, etc...all of these components and their individual parts (bushings, balljoints, u-joints, rod ends) will face more stress and be subject to pre-mature wear when you jack up the suspension and steering geometry with even a small lift and slightly bigger tires. In my experience, these stresses are magnified in cold weather. The question you have to answer is when to say "I'm comfortable with my risk".

You can run 33" tires without a lift. You can also invest in a 1.5" lift that'll set you back over $2k and still have places to invest money on better components. Just don't throw a "leveling kit" on and then be pissed when you get death wobble or assume that because you aren't getting death wobble that nobody else will.




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After thinking over the responses, and having been an operator supervisor working expensive machinery for almost 27 years, I can relate to what you are saying here. A leveling kit may work OK for 10,000 0r even 30,000 miles, but the stresses on steering and suspension components could multiply over time and result in failures.

Could you recommend a high quality lift kit that would contain all of the needed pieces-parts? I'm only looking to lift it a maximum 2".
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  #22  
Old 12-19-2015, 08:38 AM
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Re: What's the highest quality leveling kit for a Wrangler JK?

Synergy 2" lift

SYNERGY MANUFACTURINGÂ*::Â*Jeep JKÂ*::Â*Synergy Jeep JK Stage 1 Suspension System, 2" Lift
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  #23  
Old 12-19-2015, 12:08 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

Any of the major manufacturers should have something close to what you want. Asking which one is "the best of the best" is completely subjective and heavily biased. I prefer teraflex. Others prefer aev, mopar, etc. find a manufacturer that has what you want at the price that is comfortable. A google search will yield all the information you should require.
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Old 12-19-2015, 12:24 PM
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Re: What's the highest quality leveling kit for a Wrangler JK?

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Originally Posted by GoCoogs View Post
Any of the major manufacturers should have something close to what you want. Asking which one is "the best of the best" is completely subjective and heavily biased. I prefer teraflex. Others prefer aev, mopar, etc. find a manufacturer that has what you want at the price that is comfortable. A google search will yield all the information you should require.
While there are many quality manufactures available, not many offer a 2" or less spring lift kit. Teraflex doesn't, neither do AEV or Mopar.

Those companies have 2.5" kits that actually net about 3 - 3.5" lift on a lightly loaded jeep.
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