My garden tractor makes a funny noise when i put...

Question

its an 20 hp automatic craftsman garden tractor, my drive belt broke last spring and i replaced it and ever since i did its been making funny noices, when i put it in drive or reverse. and now it wont even move it maks a loud noise its like a belt is sliping. so then to push it to the shed i had to disengage the rearend and its not disengaging. what can i do to fix this problem.

dan
bathurst nb