I'm doing all my homework on how to go about putting a lift on my zj. Some kits talk about having a T-case drop kit included to eliminate spending the extra $ on new drive shafts. Im planning on going with a 4 inch kit and either way im going to need to do something about my shafts being to short. Is this the proper way to do it? Not sure if its just ok for a zj, or do i need to save for the shafts? Im not looking for a monster rock crawler just getting muddy and some fun in the trails... this is what the add on ebay says word for word.

"Also included in our system is a transfer case drop kit. This is necessary for any lift over about 2" to help avoid purchasing custom driveshafts. While new driveshafts are never a bad idea when you start playing hard.... most folks cringe at the thought of having to spend an extra $700-1000 just for driveshafts when a simple drop kit such as ours will take care of the job just as well."
and this is the link- http://cgi.ebay.com/ebaymotors/Jeep...yZ33585QQihZ010QQitemZ200108845901QQrdZ1