lowered and pre-lowered

Groentje · **Joined:** Sun Aug 06, 2006 3:47 pm **Posts:** 2

Newbie question :oops:

What is the difference between lowered and pre-lowered what did they exactly change.

Is there a difference in liftkits for a lowered and pre-lowered

pokefan · **Posted:** Tue Apr 10, 2007 9:49 am

Search must not work anymore

Pre-lowered had taller springs don't know exactly the cut off date (I believe it's 03+ that are lowered). Lifts are the same but you won't get as much in a pre-lowered

ATXKJ · **Posted:** Tue Apr 10, 2007 11:51 am

I think is was mid 02 - when they switched

When the Liberty was 1st introduced some magazine editor ran it through a slalom course & rolled one - Chrylser panic'ed and immediately shortened the springs.

If you do a lift that replaces the springs - then you're at the same height, however if you do any kind of spacer lift - the prelowered will be about an inch higher
(it's never been clear to me if the 2 1/5 inch lift limit was calculated on the lowered or prelowered)

Kniggit · **Posted:** Tue Apr 10, 2007 12:20 pm

Makes you wonder if the pre-lowered KJs are having balljoint problems a little.

K

Gringo Loco · **Posted:** Tue Apr 10, 2007 12:30 pm

From the FAQs section

Lowered KJ - KJs were lowered 3/4" after April 2, 2002. This was done to help lower the chances of accidental roll-overs.

Pre-Lowered - Early 2002 model KJs were 3/4" taller than lowered KJs, they were manufactured before April 2, 2002.

jerbacher · **Posted:** Tue Apr 10, 2007 12:30 pm

pokefan wrote:

Search must not work anymore

The search never really works very well.

I have a pre-lowered. My dad just got an 05, which is obviously lowered. When they sit next to each other, they looke exactly the same height. My conclusion is that by now all the prelowered Libbys have sagged enough that it doesnt make any difference.

spencevans · **Posted:** Tue Apr 10, 2007 3:51 pm

If you goto AllJ's page they give a graet description of lowered vs prelowered. http://www.boulderbars.com/frankenlift_faq.htm

Groentje · **Joined:** Sun Aug 06, 2006 3:47 pm **Posts:** 2

jerbacher wrote:

The search never really works very well.

The searchengine did not give me the information I wanted.

Tnx for the answers.

So only the springs were 3/4 " lowered.
For the backsite now it is clear for me.

The front I still do not understand
The struts are the same for lowered and pre-lowered ?

I think that the length of the strut is the only thing that specifies the height.

A shorter or a longer spring will only give less or more preload on the strut and has a lesser influence
I can ad 2 or more spacers and will end up with the same height as 1 spacer and a very very stiff ride

please advise the stupid dutch guy :wink:

tommudd · **Posted:** Tue Apr 10, 2007 4:42 pm

springs determine how high or low a vehicle is, not the struts or shocks. Struts and shocks control the dampening effect of the springs.

jcphoto20 · **Joined:** Sun Nov 19, 2006 1:36 am **Posts:** 507

[quote="Kniggit"]Makes you wonder if the pre-lowered KJs are having balljoint problems a little.

K[/quote]

mine has had no problems at all, at 45000 miles with the original balljoints, i had no play on one side and negligible amount on the other. only let them do the last ball joint recall cuz i thought i had to. these better be just as good in 50000

sleeve84028 · **Posted:** Tue Apr 10, 2007 8:50 pm

Mine was manufactured December 2001 or January 2002 (I can't remember anymore) but I never had any problems with my LBJ's either

RAYMAN975 · **Posted:** Tue Apr 10, 2007 10:13 pm

my jeep was built june of 02, so its lowered. my jeep had 30k on the stock balljoints and the mechanic said they were perfectly fine when he removed them, but still put the new ones in

FastTRX · **Posted:** Wed Apr 11, 2007 7:23 pm

jerbacher wrote:

pokefan wrote:

Search must not work anymore

The search never really works very well.

I have a pre-lowered. My dad just got an 05, which is obviously lowered. When they sit next to each other, they looke exactly the same height. My conclusion is that by now all the prelowered Libbys have sagged enough that it doesnt make any difference.

Eye to eye height...you really can't ever tell the difference and if you can it's not much. The difference I noticed when comparing my pre-lowered sport to an 03' non pre-lowered was the height between the wheel wells. I noticed a difference with both a CRD and the 03', and the difference is very distinct. It's really not much...but its the only way to tell.

My sport has 86K logged

, balljoints replaced once, no problems at all, no abnormal wear or anything along those lines. I'm 2nd owner tho...

spencevans · **Posted:** Wed Apr 11, 2007 9:34 pm

The gas libertys are all pretty much the same except for the springs. The CRDs are the odd ball of the bunch. The CRD's front frame rail is about 3/4" lower than the gassers, so the front differential sits about a 3/4" lower. The CRD theoretically could be lifted 3/4 more than a gasser.

FastTRX · **Posted:** Thu Apr 12, 2007 11:28 am

spencevans wrote:

The gas libertys are all pretty much the same except for the springs. The CRDs are the odd ball of the bunch. The CRD's front frame rail is about 3/4" lower than the gassers, so the front differential sits about a 3/4" lower. The CRD theoretically could be lifted 3/4 more than a gasser.

Not to mention the cradle is lower so the CVs aren't as flexed as a gasser when lifted. This could be an advantage but at the same time allows for possibly more lift if the UBJ contact is minimal. But I'm sure there are more problems...

Kniggit · **Posted:** Thu Apr 12, 2007 1:40 pm

yea like it weighs more....

K

Video Guy · **Posted:** Thu Jun 14, 2007 10:46 am

jerbacher wrote:

My conclusion is that by now all the prelowered Libbys have sagged enough that it doesnt make any difference.

I disagree. I notice a lot of '02 KJs (with the 4x4 badge under the rear side windows) and they sit noticeably taller than newer stock models. Tomorrow I will park next to the white pre-lowered KJ in my office parking lot and take pictures (front, rear, and side view) for comparison purposes. With a 1.5" spacer in my front struts, my hood line sits only about 1/2" taller than the stock 2002. That's why I'm still looking for pre-lowered springs. My back end is right where I want it, but I want another 1/2" in the front. My only low-cost options are installing Daystar upper strut plates, pre-lowered springs, or a clevis lift. I think changing springs will give me the best ride, as I don't want to compress my existing springs any further.

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