I was driving the other day and accidently hit something in the road (definately something really hard) and made my car jump an all. I stoppep inmediatly. When I checked under the car my muffler broke in half and there was a leak coming from the transmission or around there. The muffler is fixed but know i'm still left with the transmission oil leak. Can someone tell me what part is leaking or an idea from the images below. And what will be the best option I can do to fix it.

 

The trans case is cracked. And being that it's perpendicular to, and ending at a seam, it's not something you're gonna be able to easily repair by welding. New transmission time. Sorry.

 

I agree, looks like the case itself is cracked. Now it is hard to tell over the internet, but I do definitely see a crack along the edge where the case is scraped up