Originally Posted by axle

sounds like a good place to start. the thicker you go in the center the more drive you put on all 4 tires, if the diff fluid is to thin in the center most of the power will most likely go to the front, the thicker you go in the front helps on power steering and takes away off power steering as you start to enter a turn, thicker in the rear gives you better on power drive but it will make the car lossen up some in the rear when you are entering turns. hope this helps there's alot of things you can make a car do by just changeing the the fulid in the diff's, and one make of car wont act the same as another make with the same fluids in the diff's.