can some one please tell me how the 4x4 system works on my p38 it it a 98 4.0 se the reason i am asking is i have recently been off roading the first time the front wheels started spinning and the rears did nothing then i have also had the rears spining but front doing nothing they never seam to all spin together when traction lost i have had the car on the 2 post ramp at work and when you start car and put in gear all 4 wheels spin if i jack up one front wheel you can just about turn it with a lot of force i have also drove the car around a car park on full lock with no problems ie wheels locking up or skipping so basicly what i want to know is how dose the car decide what wheels to put the power to and is my 4x4 system working normaly thanks