Case 350B rear end destroyed

So I was cut a slope on a long driveway a couple days and I put a real load on the dozer. When the engine really started to get a load on it and the tracks broke loose it started making a banging noise. After I took the load off it it didnt go away I tried backing up to park it but, eventually something completely let go. I was able to push it to the side with the skid loader, but now it wont move at all. its not the

Discuss this in the forum topic Things just got expensive...350B.