Chevrolet Repair: 100,000 mile maintenance for a 2002 chevy tahoe, chevy tahoe, lh side

Question
 Im stationed in Germany, they dont offer a lot of places to take the tahoe anywhere to get serviced.  All I want to do is find out what I can do to service my 2002 chevy tahoe 4.8 liter 2wd.  Im not too mechanically inclined but I get by.  Please let me know what I can do.  Thank you for your time.  
Cincerely Ryan

Answer
You will need to change your spark plugs (not to difficult)
You also should change fuel filter, air filter, and your pcv valve.  These are not to difficult although you will have to lay under the vehicle to change the fuel filter.  
Also you should flush the coolant. The petcock is located on the LH side lower of the radiator.  at 100,000 miles it is recommended to change trans filter and fluid but that is not as urgent.  Good luck.