You better break in your TC right!!
That's right...these SRT8's have a different Transfer case than a regular Jeep to handle the 392 power and torque.
The minute it comes off the delivery truck you should gingerly drive it to a parking lot and immediately perform....
5- 360' turns to the right
5-360's right in reverse
5-360's left in reverse
5-circle 8's left and right
5-circle 8's in reverse left and right
at 500-1000 miles have the transfer case flushed and refilled and your good to go... debris from break-in NEEDS to be removed.
Remember all the problems earlier with people having clicking and grinding and binding issues? The clutch packs need to be broken in properly they are VERY TIGHT when assembled
Don't just listen to me the SRT8 engineers instructed people who were having these issues to perform the above mentioned manuvers at break-in then have the TC flushed and refilled! There are posts here and on the red-site hint-hint.
Be smart break-in IS VERY IMPORTANT!! I personally would NOT TAKE IT OUT for it's first run to stretch it's legs even on a test drive UNTIL the TC is broken in properly.
My 2cents worth...just trying to help out