WHEN I START CAR AND HIT THE GAS IT WONT MOVE,ITS LIKE THE WHEELS ARE LOCKED.

i have 93 4x4 4runner and if yours is too then this i say is more than likely your problem. i had the same symtoms as you described and your transfer case has a chain in it that has broken and has jammed in the gears in the box and making it seem like the wheels are locked or the drive train and no forward or reverse motion. it is an easy enough thing to investigate when in 4x4 drive the front and rear output shafts should rotate together and if chain is broke only one will turn. i hope this answer helps someone and i hope i find a answer for what i am looking for.