Originally Posted by NikonGuy
Doesn't the front just share with the tranny fluid
No, the transmission isn't even touching the front differential, the transmission is mounted behind the engine, the differential is mounted in line with the front axle and underneath/beside the engine. There is a drive/propeller shaft between the transfer and the front differential. (Engine -> Transmission -> Transfer -> Front & Rear Differentials, they all have their own fluids).