01 Jimmy front drive shaft

2001 Jimmy 4wd, 115,000 miles; Recently I noticed a strong vibration when in 4WD, no vibration in 2wd. I found that the rear joint (at the transfer case) of the front drive shaft has play in it. I am assuming that this is the problem. It has the appearance of a CV joint. Is that joint rebuildable or do I need to replace the shaft?

Thank you.

You will need to replace the shaft. They use a "cardan" joint in there and it is not serviced seperatly.