BillyJack

A few years ago, I cheaped out and got a Rubicon Express "budget boost" 2.5" spacer lift with shocks. Essentially using my stock JK Rubicon springs with a rubber spacer lift. The ride is extremely stiff and I'd like to soften it up a bit as it reminds me of my old YJ.

Question is, can I just replace the springs and spacers with new springs or should I go with a full lift kit? Are my shocks creating any of the stiff ride or is it all springs?

Used for mild wheeling, mostly trails these days.

webejeepin

I recently went from a TF level kit and Rubi shocks to a full AEV 2.5 system. Wow what a difference drives like a new Jeep again. Coils and shocks are a matched pair.

In your case if you just replace the coils and spacers with longer coils, you shocks will not be long enough.

Yes, shock play a big part in overall ride comfort, plenty to consider.

Dirtman started a thread here call my thoughts on lifts.... Great read set I recommend giving that a look.

Also at 2.5" there are other things to consider such as track bar and longer sway links in the front. Each manufacture does something a bit different so do your homework.

Don't forget to address your front geometry makes all the difference in the world even with 2.5"

RE 2.5 coil with their bills was my second choice

IMO complete is the way to go

BillyJack

Man I wish you didn't make so much sense. I have a quote on my desk for the AEV 2.5 with geometry correction brackets...

951Rubi

Geometry correction brackets simply lower the frame mounting point for the control arms don't they?
I'm joking with adjustable control arms.

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nthinuf

What is the tire size / load rate / psi? Over-inflation on a tire with stiff sidewalls might be all it is.

During the spacer install, were all control arm and trackbar bolts loosened, then tightened while on the ground? If not, some people have indicated an improved ride after loosening and shaking their jeep.

Who's 2.5" coils are you considering? Do some research so you know what lift height you can expect from them. Could be 2", could be 4" or more. The higher you end up, the more likely you are to want to add components. (these is a lot of personal preference involved, so research what the various components do and at what heights most people start wanting them)

I am not familiar with their shocks, but a little research should tell you if they are known to be stiff. The shock 'length' will be fine, since you are swapping from 2.5" spacers to 2.5" coils.

kjeeper10

Add geometry brackets to what you have. Aftermarket coils are going to firm up the Ride more.