Since I know you're asking about my front driveshaft I'm trying to sell you, I'll add this information too....
Mine is stock length off of my 2000 XJ with the D30, not sure if it's LP or HP. Whatever the 2000's 4 door Sports had. It was just long enough for 5" lift, but barely. If you're anything less than 5" you should be fine.
There were no other axle or t-case changes I made. Just stock.
Hope that helps!
Chris