once you get the car go to your local dealership and give them the TSB# listed and ask them to fix the problem, as you have just purchased the car and dont believe it has been brought in for this repair.

TSB# - SR-98-002R2
DATE - SEP 98
Recall - Transfer Case Inspection and Repair
Description - http://www.tmo.com/today/faqs/xferleak.htm