hi i have a 96 RR 4.6 hse. my car is stuck half on my driveway and on the street( i got an up hill driveway) i guess something in the rear drivetrain is messed up because when i put it into any gear the rear end starts grinding badly really badly and the car doesn't move >< from what i looked at nothing you can see on the outside of the axle is rubbing. its definitely inside. anyway i've never used the 4 wheel drive only when i tested out the car. but could i take all the internals from the front axle and put them in the rear? i really don't have any money to spare these days and i need to fix it because it's my daily driver. thanks for your help in advance