I recently bought a 98 subaru forester and I got stuck shortly in my backyard. The front tires dug in and spun but I hardly got any power to the rear. The vehicle drives fine on the road and I don't get any violent vibration as would probably be the case if it was not working at all. Also I was able to get out even after my front tires were buried deep in the mud. So I'm assuming I'm getting the 90% Front-10% Rear power but I'm not getting the 50%-50% I should have got when my front tires were spinning in the mud. Could this be a sensor problem? Anyone have a clue where I could receive information on this. I would definitely appreciate it.