I thank my auto hubs are dead last night I was out looking at some deer and rideing around my buds farm we went down along the power lines that run true his farm we got to a bottom with a little mud in it so I put it in 4WD and go the frount tires go true then the back just set down in the mud a spin and the frount dont spin at all but you could here the frount shaft moveing so I guess it is the auto hubs. how do I tell if it is the auto hubs? are they hare to swap out with manuls? and sould I use mile marker or warn? thanks Go prepared I have a Shotgun a Rifle and a 4WD(K5) and Country Boy Can Survive!!!!