Pre-cat whoes
 

Trans is in and everything there good, still hear a screeching sound and my have an exhaust leak, my precat is completely empty inside and the upper gasket is blown out. My friend thinks having to get the truck home with the trans going out probably blew it out. I can't find any cats for sale for this that are cali legal so I'm thinking of just buying the gasket and bolting it back together with it hollow unless there are any suggestions of where I can get a cat.

So i understand yo have some kind of a truck. It could be a Mazda or something. Why don't you try your friendly Mazda dealer? How about a junk yard?
Car-Part.com--Used Auto Parts Market

READ: https://www.mazdaforum.com/forum/maz...3-0-ltr-30510/

They are now available from Magnaflow. They may also be available for your vehicle (not just 3.0 ltr), click on links in thread to fine tune your search.

thank you