Pour can of beef in slow cooker, and add boneless pork ribs. Cook on high heat for 4 hours, or until meat shreds easily. Remove meat and shred with two forks. It will seem like its not working right away but it will.
Pre-heat oven to 350 degrees F (175 degrees C). Transfer the shredded pork to a Dutch oven or iron skillet, and stir in barbecue sauce.
Bake in pre-heated oven for 30 minutes, or until heated throughly