changing axle and tranfer case fluids
took my 09 KK Limited in for service, oil change, tire rotation, dealer says "it's time" to change axle and transfer case fluids, $300, and power steering should be flushed and changed, $85. " it is showing signs of being dirty".
KK has 27000 miles, it is driven mostly on pavement. I dont see anything in owners manual about changing these fluids, it mostly says to check them at certain intervals. what do you think, is it necessary?