quick lift

[fish]

anyone had experience with this style kit? seems popular with the yanks and pretty simple. would this need a cert? thoughts.

http://www.ebay.com/itm/JEEP-Grand-Cher ... 37&vxp=mtr

[lax2wlg]

They call it a 'budget boost.'

Aint nothin wrong with it

[wranglerbabe]

I am also thinking of doing this with my Jeep wrangler. Much cheaper than new springs and shocks. I figure it will give me a good feel for the height, let me save for some new tyres and then I can decide to stay at that height or go higher with springs etc.

[lax2wlg]

Yeah they put a lot of thought into setting up the factory suspension to deliver perfect articulation balance and overall performance (on and off road).

In many ways its good just to leave it alone as it is such a good setup.

Often these aftermarket springs give no consideration to performance and are too stiff etc.

I'd put the money towards lockers.. then performance-wise youre rubbing shoulders with the Rubicon Unlimited... the most capable production 4x4 in the world.

[wranglerbabe]

Yeah they put a lot of thought into setting up the factory suspension to deliver perfect articulation balance and overall performance (on and off road).

In many ways its good just to leave it alone as it is such a good setup.

Often these aftermarket springs give no consideration to performance and are too stiff etc.

I'd put the money towards lockers.. then performance-wise youre rubbing shoulders with the Rubicon Unlimited... the most capable production 4x4 in the world.

So spring spacers and lockers would be the way to go then?

[00falcon]

Lockers are expensive and serious...

I have a 2.5" spring lift with Simex, and its not that often the guys with lockers get thru what i cant...
and hey, its a bit of fun when i have to get dragged out...

My Shopping/Upgrade list is a mile long...
how much of it will happen is another story...
but even so, a (Select-able) locker is a long way down.
My feeling is i would rather re-gear now, and lock later, as i think you require a different locker/carrier once you go up from 3.73.

Also, even with a budget boost, don't you need new shocks...?

[lax2wlg]

So spring spacers and lockers would be the way to go then?

Oh please dont base your decision solely on what I'm saying.. I'm just saying what I would do is stuff 33x10.5 BFGs into the standard suspension, swaybar disconnects, lockers front/rear, and lower gears in the differentials 5.13, 5.29. Then you would have a total sleeper.

I'm guessing your aim is to fit bigger tyres.
I would fit the tallest tyre/rim combo possible without lifting it.

I have a 2.5" spring lift with Simex, and its not that often the guys with lockers get thru what i cant...

I guess a lot of it comes down to the type of 4x4 activity one is engaging in.
What sort of terrain are we talking about... are we talking about this high revving mud bogging winch challenge type stuff which seems to be popular, or are we talking technical inch by inch crawling up high traction rock faces, or idling through rocky river beds, or massively undulated ruts etc...?

[TJ]

Without lifting a TJ, the biggest tyre you can go is 31s. If you don't like your fenders, go bigger with no lift and adjustment to the bump stops.

Budget boost with factory shocks will mean now the shocks are your limits for axle drops.

[wranglerbabe]

Ok, so, are spring spacers a good way to go for someone on a budget, wanting a bit more height without any serious mods?

[fish]

Ok, so, are spring spacers a good way to go for someone on a budget, wanting a bit more height without any serious mods?

my question exactly, if so i will do shocks with it as mine are spongy.
is there any real negative to a 1.5 - 2 inch spacer lift?

[TJ]

If you are going to the trouble of taking the springs off to put these on and changing the shocks, might as well put lifted springs in at the same time. Get the springs and shocks matched for height and performance and there will be no troubles. I am not a fan of these short cuts as they eventually have to be replaced. Get springs from a reputable Jeep related brand. Chances are you will over compress the factory springs with these on when you are on the compressed side, which basically is a recipe for sagging.

If you stick to around 2" lift with springs, nothing much needs to be done to other drive components. SYE and stuff becomes necessary for taller lifts or if you damage your transfer case. 2" lift on a TJ gets you 32" tyre easily.

[pmfg]

I have 2 inch polly spaces, And when I get the money I will be changing them for a spring and shock lift kit. I just dont like the look of these poly spaces.... something just doesnt feel right, like its a job half done or something, thats just me though.

[WideLoad]

Little off topic, but the comment above about lockers being to expensive isn't entirely true. I put a Aussie Lokka in the front of my TJ and was only $300 delivered to my door plus some diff oil and was easy enough to install. Would have to be the best mod I've done and made the biggest difference to offroad ability without affecting the road habits, other than a lil clicking on tighter corners.

[TJ]

Auto lockers are a good option.

[fish]

and does it need a cert?

[TJ]

and does it need a cert?

No.

[wranglerbabe]

How high can you go before needing a cert?

[XJCrawler]

Correct me if I'm wrong but maximum is 50mm above stock.

Go all out get a long arm, chromolys and lockers be sick as lol

[TJ]

Correct me if I'm wrong but maximum is 50mm above stock.

Go all out get a long arm, chromolys and lockers be sick as lol

Technically, you are incorrect. Limit is not specified in numbers as such.

[lax2wlg]

The other option with the budget boost is to just keep your existing shocks and mod the bumpstops to compensate.

ie it is literally a budget boost just to gain a bit more room to fit taller tyres, not actually increase wheel travel, preventing situations where the springs will want to fall out etc

Coil spacers are accepted as being a good solution when setup correctly. Just dont go crazy on the height

[slidenyo]

the old adage "the cheapest option is always the most expensive" springs to mind.
there is absolutely nothing wrong with 31 mt's on a small 4x4 in fact it can be an advantage.
tire width selection and wheel offset can be the difference between running a 31 and a 32.
running big offset can see the tires take the wear that normally the body might cop running through deep ruts and high angled sidlings,
but it can introduce other issues

[lax2wlg]

Theres absolutely nothing wrong with or half arsed about modest-sized coil spacers if setup correctly, and you are looking for a little bit of lift without messing up the standard suspension setup.

Coil spring rate: function of static length (longer, more lift), wire diameter (lower diameter, easier to compress) and number of coils (more coils, lower spring rate.)

They spent a lot of time/research getting the suspension to work well on the TJ. By fitting aftermarket springs you are disregarding all of this.
I'm not saying dont do it, I'm just saying think about where it will get you. Aftermarket springs will generally have a thicker wire diameter so actually articulate less.

As for the Grand Cherokee, Chrysler used about a million different spring rates depending on the model... Its insane... as an example a good mod for Pathfinders is to put Jeep ZJ (Grand Cherokee) front springs in the back... between 92-97 there were over 12 different spring rates used, depending on I6, V8, Upcountry model, tow model, skid plate etc etc.

Aftermarket springs are generally one size fits all, so be ready for it

[TJ]

Aftermarket springs are generally one size fits all, so be ready for it

Generally, yes most producers just go with one spring rate. However, companies like ARB/Old Man Emu, Currie Enterprises, AEV and similar higher end producers do have springs for the same model in different configurations. AEV work very closely with Jeep/Mopar for development work.