i remember back in 06 or 08 people were doing cradle drops on the kjs, i even think jeepinbyal used to sell a kit for that.
some people created 3/4" steel spacers and stuff like that. i even think i saw knuckle an balljoint spacers.

don't know about how all that can be applied to the kk.

A few people tried it back when I fist started hanging around in 03-04 and on every now and again and then they all disappeared from the scene after having issues.
JBA still does have a cradle drop with his 6 inch KJ kit although more involved than just dropping the cradle.
ball joint spacers Do you trust your life being held together with 4 little bolts per side ?
Again if you want something for trail use and not count on it for a DD then you can do a lot of things or if don't care about your safety

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

You can forget about ever going past 5". Somebody would have to create a front drive shaft that is extendable and floats, the cradle would have to be dropped, the sensor that sits just below the drive shaft on the muffler would have to be relocated, somebody would have to invent new upper control arms, a new sway bar or sway bar disconnects, new coilovers would have to be invented. A lof of new stuff would have to be invented . O! I forgot about the rear. coils, shocks, extendable drive shaft, and the funnest part of all longer upper and lower control arms. Maybe one day somebody will create a larger lift, its not entirely impossible, I just dont see any major compony, or fab shop investing the R/D into this. IMO a sas waould be cheaper, and ten billion times better. Dana axles are all over the place and you can find them everywhere form Craiglsist, to junk yards for the cost of a tank of gas these days. Rip the IFS out, get a Dana HP 30, some Fox or FOA coil overs with King, Eibach, or Viper #500 coils, a JK steering box, a Clayton crossmember, your choice of long arms, and a custom prop shaft ( I say custom because the bolts coming from the t-case are weid and you will most likely have to have holes drilled to mate up). The rear - JK or TJ 6" coils, you can chose to do a long arm in the back, or fabricate, or find adjustable long arms that will work. You will also most likely need a longer prop shaft in the rear. All of this said - A magical 5+" lift with the IFS will still give you...... well an IFS and DD. A SAS will give you a proper trail rig and DD. Cost wise, Im being psychic and predict the price of some magical IFS will be a lot more than doing a SAS. In conclusion, a radical super cool lift with the IFS is not going to happen, at least any time soon. If your itching for lift, do the SAS because realistically its your only choice. Im in the process of doing it to my KK Sorry if my grammer is terrible, Im a Geologist.

Just my

The rear is the easiest part. Since it already has dual control arms, it's an easy conversion to go with longer arms. om Woods already has the specs on the rear driveshaft

It's the front end that's a total night mare

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2008 KK Liberty Sport NIGHT OPS EDITION + GILLS
OEM & Custom Skids - Factory Tow Package - Rock Lizard Skink Super Sliders
Prototype JBA 4 Inch Lift - JBA UCA's - Flowmaster Super 44 OR - Whacked Resonator
Jet Stage 2 - RL Gecko Basket Rack - Custom Winch Bumper - Recon 10.5K Winch