You'll need to bolt it up to the Kick transmission.
We've been using ours for a year and a half now.
Its been working great, `cept for our last Moab trip, when we think we bent a shifter fork.
The jury is still out on the cause of our issue, but it kept popping out of low.
Since then, we've been running a spare Kicker 3 from a buddy and other than our Moab issue, we run 4.24:1 gears in ours and it has been working awesome. Having all of the options to run in either regular 4 low (2.2), super low (4.2), and then compounded low (~9.3) has been a very usefull experience.
Since we've been running the spare, which doesn't have the 4.24 gears, its been great to use too, we still have 3 low range options, 1.8, 2.2, and 3.24.
Having the mated t-cases keeps the vibrations down.
Installation was easy. We made 2 new cross members, one for the transmission/kicker-3 and one for the sammy t-case to keep strength at a maximum. (might even call it over kill)

I agree on the Sami t-case gears too. If you put the low range in the sammy t-case, you'll get the additional high range reduction, You'll have the ease of maintaining your gears in a Sammy t-case over the Kicker 3, which is better in my opionion. Plus you'll have tons more choices of low-rage gears.
Good luck,