555A problems

[1mocrawler]

Hello all. I have a 555A that I have lost power to the left side track. This started after a slide into a stump hole after stump removal. The right side slid into the hole and the left side was basically on high ground with little traction. I lost power to left side somewhere in the process of getting the loader out(had to pull it out). I never heard any noise or pop from the left side and the left side moves free. The left steering pedal has lost pressure but the left brake still works. Before I dive into it, can anyone point me in a specific direction.

thanks,
Brent