I can concur that the Eibach Pro Kit does fit my 2014 DJ (2.4L) HOWEVER with slight modification!
The front springs has zero issues. Plug n play.
The rear springs is the problem. Although the lower ends of the Eibach springs fits the lower end of the suspension , it is the top side that does not fit the standard "rubber boot" of the DJ. Not sure if it is the correct term (see attachment).
To remedy this you will need to find a suitable rubber boot to accommodate the smaller diameter of the springs and the rubber boot must also be able to fit the upper end of the suspension. Another option would be to heat and stretch the upper end of the spring to the size of the rubber boot. Safety issues? Had it almost for 1 year. Time will tell..
Am not sure if it is available for 3.6L engine. Maybe one can enlighten us?